Four people, A, B, C, and D, go to buy computers. The money brought by A is 50% of the total amount brought by the other three people, and the money brought by B is 1/3 of the total amount brought by the other three people. The money brought by C is 25% of the total money brought by the other three people, and the money brought by D is 910 yuan. What is the total amount of money brought by the four people?
甲、乙、丙、丁四人去购电脑，甲所带的钱是另三人所带总数的50%，乙带的钱是另三人所带的钱的总数的(1/3)，丙所带的钱是另外三人所带钱总数的25%，丁带910元，四人所带的钱的总数是多少元．
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(1/2) / (3/2)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(1/2) / (3/2) / (4/3)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(1/4) / (5/4)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/3) - (1/4) - (1/5)</gadget>
<output>13/60 = around 0.216667</output>

<gadget id="calculator">910 / (13/60)</gadget>
<output>4_200</output>

<result>4_200</result>