Uncle Li bought 1,000 yuan of national construction bonds with a period of 3 years. If the annual interest rate is 5.74%, how much will he get the principal and interest when it matures.
李大爷买了3年期的国家建设债券1000元，如果年利率为5.74%，到期时他可获本金和利息共多少元．
<gadget id="calculator">5.74 / 100</gadget>
<output>0.0574</output>

<gadget id="calculator">1_000 * 0.0574 * 3</gadget>
<output>172.2</output>

<gadget id="calculator">1_000 + 172.2</gadget>
<output>1_172.2</output>

<result>1_172.2</result>