Find x in the following question

\(2\frac{1}{4}{\rm{\;}} + {\rm{\;}}8\frac{1}{8}{\rm{\;}} - {\rm{\;}}6\frac{3}{4}{\rm{\;}} = {\rm{\;}}\frac{1}{4}{\rm{\;}} \times {\rm{\;}}\left( {58{\rm{\% \;of\;x}}} \right)\)