Rs.4536 is divided among 4 men, 5 women and 2 boys. The ratio of share of a man, a woman and a boy is 7 : 4 : 3. What is the share of a woman? 

Given that, Rs.4536 is divided among 4 men, 5 women and 2 boys. 

The ratio of share of a man, a woman and a boy is 7 : 4 : 3

Suppose that the shares of  man, woman and boy are $7x,4x,3x$

Hence the total amount is 

$\begin{array}{rcl}4\left(7x\right)+5\left(4x\right)+2\left(3x\right)& =& 28x+20x+6x\\ & =& 54x\end{array}$

it implies htat 

  $\begin{array}{rcl}54x& =& 4536\\ x& =& \frac{4536}{54}\\ & =& \frac{9·6·84}{54}\\ & =& 84\end{array}$

Therefore, the share of a woman is $4x = 4\left(84\right)=\boxed{\mathbf{\text{Rs}}\mathbf{ }\mathbf{336}}$