Помогите пожалуйста решить уравнение, найти x, срочно

Решите задачу:

$(1,7:(1 \frac{2}{3}x-3.75 )): \frac{8}{25}=1 \frac{5}{12}\\\\(\frac{17}{10}: (\frac{5}{3}x- \frac{15}{4})): \frac{8}{25}= \frac{17}{12}\\\\\frac{17}{10}:(\frac{5}{3}x- \frac{15}{4})=\frac{17}{12}* \frac{8}{25} \\\\\frac{17}{10}:(\frac{5}{3}x- \frac{15}{4})= \frac{34}{75}\\\\\frac{5}{3}x- \frac{15}{4}= \frac{17}{10}* \frac{75}{34} \\ \\ \frac{5}{3}x- \frac{15}{4}= \frac{15}{4} \\\\\frac{5}{3}x=\frac{15}{4} +\frac{15}{4} \\\\ \frac{5}{3}x= \frac{30}{4}\\\\x=\frac{30}{4}* \frac{3}{5}= \frac{18}{4} =4.5$