It is known that the bank deposits and withdraws in one lump sum, and the interest rate for the deposit period of three years is 5.40%. Xiao Li deposits a sum of money, and withdraws the interest of 1231.2 yuan after maturity. How much money does Xiao Li deposit?
已知银行整存整取，存期三年的利率是5.40%，小李存入一笔钱，到期后取出利息1231.2元，小李存入多少钱？
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</output>

<gadget id="calculator">1_231.2 / 3 / 0.054</gadget>
<output>7_600</output>

<result>7_600</result>