Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is $0.46{\mathrm{gL}}^{-1}$ at ${257}^{\circ }\mathrm{C}$ and 100 mm Hg. The molar mass of geraniol is______g mol^-1 (Nearest Integer)

$\text{ [Given : }\mathrm{R}=0.082\mathrm{L}\text{ atm }{\mathrm{K}}^{-1}{\mathrm{mol}}^{-1}\text{ ] }$