Number of females in the town $$=3732$$
Number of males in the town $$=4000$$
Ratio of female and male in town $$=\frac{3732}{4000}$$
$$=\frac{933}{1000}$$
As sex ratio is the number of females per $$1000$$ males
$$\therefore \text { Sex ratio of the given town is } \frac{933}{1000}$$