After the "5.12" Wenchuan earthquake, the fourth grade students of our city's experimental primary school donated a total of 1,200 yuan to the disaster area. /5). How much is the fifth grade donation?
"5、12"汶川地震发生后，我市实验小学四年级学生共为灾区捐款1200元，四年级的捐款数是六年级的(3/4)，五年级的捐款数是六年级的(4/5)．五年级捐款多少元？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1_200 / (3/4)</gadget>
<output>1_600</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1_600 * (4/5)</gadget>
<output>1_280</output>

<result>1_280</result>