Aunt Chen has deposited some money in the bank for one year, with an annual interest rate of 4.14%. When the money is due, she has to pay an interest tax of 5%. She finally got a total of 157.32 yuan in interest. Do you know how much Aunt Chen deposited in the bank a year ago?
陈阿姨在银行存了一些钱，定期一年，年利率为4.14%．到期取钱时要缴纳利息税5%，她最后共得到利息157.32元，你知道陈阿姨一年前存入银行多少钱吗？
<gadget id="calculator">4.14 / 100</gadget>
<output>0.0414</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">0.0414 * (1/20)</gadget>
<output>0.00207</output>

<gadget id="calculator">0.0414 - 0.00207</gadget>
<output>0.03933</output>

<gadget id="calculator">157.32 / 0.03933</gadget>
<output>4_000</output>

<result>4_000</result>