Li Ming bought treasury bonds of 4,000 yuan for three years, with an annual interest rate of 2.89%. After the expiration, he donated the interest to the "Hope Project" to support poor children. How much can Li Ming donate to "Project Hope".
李明买了4000元国库券，定期三年，年利率为2.89%，到期后，他把利息捐给"希望工程"支援贫困儿童．李明可以捐多少元给"希望工程"．
<gadget id="calculator">2.89 / 100</gadget>
<output>0.0289</output>

<gadget id="calculator">4_000 * 0.0289 * 3</gadget>
<output>346.8</output>

<result>346.8</result>