Step 1.
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\[\begin{array}{l}
\;\;\int {\frac{{dP}}{P} = \int {0.7944dt} } \\
\ln \left| P \right| = 0.7944t + C\\
{\rm{integrate both sides}}\\
\left| P \right| = {e^{0.7944t + C}}\\
\left| P \right| = {e^C} \times {e^{0.7944t}}\\
P = C{e^{0.7944t}}{\rm{ }}\left( {{\rm{raise to the }}{e^x}{\rm{ power}}} \right)\\
2 = C{e^{0.7944 \times 0}}\\
2 = C \times 1\\
2 = C\\
P = 2 \times {e^{0.7944 \times 6}}\\
P = 234.991\;\;\;
\end{array}\]