A factory produces parts in the third quarter. The first month produced 5000 pieces, the second month produced the first month's (4/5), and the third month produced the second month's (9/8). How many were produced in the third month?
某工厂第三季度生产零件．第一个月生产了5000个，第二个月生产的是第一个月的(4/5)，第三个月生产的是第二个月的(9/8)．第三个月生产了多少个？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">9 / 8</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">5_000 * (4/5) * (9/8)</gadget>
<output>4_500</output>

<result>4_500</result>