A dipole of dipole moment $\overrightarrow{P}=2\stackrel{\wedge }{i}-3\stackrel{\wedge }{j}+4\stackrel{\wedge }{k}$ is placed at point $A\left(2,-3,1\right)$. The magnitude of electric potential due to this dipole at the point $B\left(4,-1,0\right)$ is equal to (All the parameters specified here are in S.I. units) $\_\_\_\times {10}^9$ volts