Solution:

$$\begin{aligned} p &=\left|\frac{a x_{1}+b y_{1}+c}{\sqrt{a^{2}+b^{2}}}\right| \ &=\left|\frac{ | 4(2)+(-6)(3)-3}{\sqrt{(4)^{2}+(-6)^{2}}}\right| \ &=\left|\frac{8-18-3}{\sqrt{52}}\right| \ &=\frac{13}{\sqrt{52}} \quad \text { or } \quad 1.803 \end{aligned}$$