\[\boxed{\mathbf{787}\mathbf{.}}\]
\[1)\log_{4}5 = \log_{2^{2}}5 =\]
\[= \log_{2}5^{\frac{1}{2}} = \log_{2}\sqrt{5}\]
\[2)\log_{\frac{1}{2}}7 = \log_{- 2}7 =\]
\[= \ - \log_{2}7 = \log_{2}7^{- 1} = \log_{2}\frac{1}{7}\]
\[3)\log_{\sqrt{2}}13 = \log_{2^{\frac{1}{2}}}13 =\]
\[= 2\log_{2}13 = \log_{2}13^{2} = \log_{2}169\]
\[4)\log_{\frac{1}{\sqrt{2}}}3 = \log_{2^{- \frac{1}{2}}}3 =\]
\[= - 2\log_{2}3 = \log_{2}3^{- 2} = \log_{2}\frac{1}{9}\]