On the threshing floor, there is a pile of wheat that is similar to a cone, with a base diameter of 4 meters and a height of 1.5 meters. Each cubic meter of wheat weighs about 735 kilograms. How many kilograms does this pile of wheat weigh?
在打麦场上，有一堆近似于圆锥的小麦堆，量得底面直径4米，高1.5米．每立方米的小麦大约重735千克，这堆小麦大约有多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<gadget id="calculator">(1/3) * 3.14 * 4 * 1.5 * 735</gadget>
<output>4_615.8</output>

<result>4_615.8</result>