A, B, C, and D jointly buy a yacht worth 4,200 yuan. The cash paid by A is 1/4 of the total cash paid by the other three people. The cash paid by B is more than the cash paid by the other three people. The total amount is 50% less, and the cash paid by C is 1/3 of the total cash paid by the other three people, so how much is the cash paid by D.
甲、乙、丙、丁四人共同购买一只价值4200元的游艇，甲支付的现金是其余三人所支付现金总数的(1/4)，乙支付的现金比其他三人所支付的现金总数少50%，丙支付的现金是其他三人所支付的现金总数的(1/3)，那么丁支付的现金是多少元．
<gadget id="calculator">4 + 1</gadget>
<output>5</output>

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

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

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

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

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

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

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

<result>910</result>