Which of the following expressions provides the correct conversion from a pressure value $P$ in $\text{inches of mercury (inHg)}$ to $\text{Pascals (Pa)}$? (Given: $1 \text{ in} = 0.0254 \text{ m}$, density of Hg $\rho = 13595 \text{ kg/m}^3$, $g = 9.80665 \text{ m/s}^2$)