A color TV is priced after a 35% increase in the purchase price, and then a 10% discount is offered as a reward. As a result, each TV still makes a profit of 258 yuan. How much is the purchase price of this color TV?
一台彩电按进价提高三成五后定售价，然后打九折酬宾，结果每台仍获利258元．这台彩电的进价是多少元？
<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 + (7/20)</gadget>
<output>27/20 = around 1.35</output>

<gadget id="calculator">(27/20) * 0.9</gadget>
<output>1.215</output>

<gadget id="calculator">1.215 - 1</gadget>
<output>0.215</output>

<gadget id="calculator">258 / 0.215</gadget>
<output>1_200</output>

<result>1_200</result>