((x)/(6.28))+2.28=((x)/4), find x.
((x)/(6.28))+2.28=((x)/4)，求x．
<gadget id="calculator">2.28 * 6.28</gadget>
<output>14.3184</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 6.28</gadget>
<output>1.57</output>

<gadget id="calculator">1.57 - 1</gadget>
<output>0.57</output>

<gadget id="calculator">14.3184 / 0.57</gadget>
<output>25.12</output>

<result>25.12</result>