There is an approximately conical wheat pile, the diameter of the bottom of the pile is 4 meters, and the height is 1.5 meters. If each cubic meter of wheat weighs 740 kilograms, how many kilograms does this pile of wheat weigh?
有一个近似圆锥形的小麦堆，测得麦堆底面直径4米，高1.5米，如果每立方米小麦重740千克，这堆小麦大约重多少千克？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

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

<gadget id="calculator">3.14 * 4 * 1.5 * (1/3)</gadget>
<output>6.28</output>

<gadget id="calculator">740 * 6.28</gadget>
<output>4_647.2</output>

<result>4_647.2</result>