Interest earned on education savings is not taxed. Dad saved a three-year education savings fund for Xiaoxiao, with an annual interest rate of 2.5%. After the maturity, he received a total of 4,300 yuan in principal and interest. How much is the principal of the education savings fund that Dad saved for Xiaoxiao?
教育储蓄所得的利息不用纳税．爸爸为笑笑存了三年期的教育储蓄基金，年利率为2.5%，到期后共领到了本金和利息4300元，爸爸为笑笑存的教育储蓄基金本金是多少？
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</output>

<gadget id="calculator">0.025 * 3</gadget>
<output>0.075</output>

<gadget id="calculator">1 + 0.075</gadget>
<output>1.075</output>

<gadget id="calculator">4_300 / 1.075</gadget>
<output>4_000</output>

<result>4_000</result>