In the "Earthquake Relief, Donate Money and Love" activity, class 31 donated 3400 yuan, class 32 donated 5000 yuan, class 33 donated 3200 yuan, class 34 donated 4800 yuan, class 35 donated 5700 yuan ． How much is the average donation per class?
在"抗震救灾，捐款献爱心"活动中，三1班捐了3400元，三2班捐了5000元，三3班捐了3200元，三4捐了4800元，三5班捐了5700元．平均每班捐款多少元？
<gadget id="calculator">3_400 + 5_000 + 3_200 + 4_800 + 5_700</gadget>
<output>22_100</output>

<gadget id="calculator">22_100 / 5</gadget>
<output>4_420</output>

<result>4_420</result>