On "June 1st" Children's Day, the school carried out the activity of "giving love to poor children". The fifth grade students donated 450 yuan, and the sixth grade donated 20% more than the fifth grade. The number of donations in the sixth grade just accounts for (1/4) of the total donations of the whole school. How much did the students in the school donate in total?
"六•一"儿童节，学校开展"为贫困儿童献爱心"活动．五年级同学捐款450元，六年级捐款数量比五年级多20%．六年级捐款数量恰好占全校捐款总数的(1/4)．全校学生一共捐款多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

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

<gadget id="calculator">(6/5) / (1/4)</gadget>
<output>24/5 = around 4.8</output>

<gadget id="calculator">450 * (24/5)</gadget>
<output>2_160</output>

<result>2_160</result>