Step 1: Establish the ratio of investments.
Using the relations given:
\[
\frac{A}{4} = \frac{B}{6} = \frac{C}{10} \quad \text{(Setting equal to \( k \))}
\]
\[
A = 4k, \quad B = 6k, \quad C = 10k
\]
Step 2: Compute the profit shares.
Total capital ratio:
\[
A : B : C = 4 : 6 : 10
\]
\[
C's share = \frac{10}{20} \times 4650 = 2325 \text{ rupees}
\]