The old man piled the rice he harvested in the corner of his house, which looks like a cone. The highest point (corner) of the grain pile is measured to be 3 meters, and the maximum distance between the two walls along the valley pile is now 9.42 meters. If every cubic meter The rice weighs 600 kilograms. How many tons of rice did the old man harvest in total?
老大爷把他收获的稻谷堆在自家的墙角，形似圆锥体，经测量谷堆最高处(墙角)是3米，沿谷堆测两墙脚之间的最大距离现在为9.42米，如果每立方米的稻谷重600千克，老大爷一共收获了多少吨稻谷？
<gadget id="calculator">9.42 / 3.14 / 2</gadget>
<output>1.5</output>

<gadget id="calculator">1.5 ** 2</gadget>
<output>2.25</output>

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

<gadget id="calculator">600 / 1_000</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3.14 * 2.25 * 3 * (1/3) * (3/5)</gadget>
<output>4.239</output>

<result>4.239</result>