1. The problem is to multiply $2.459 \times 10^{-4}$ by 15. 2. Start by multiplying the numbers directly: $2.459 \times 15 = 36.885$. 3. Now, multiply by the power of ten: $36.885 \times 10^{-4} = 36.885 \times 0.0001$. 4. Multiply $36.885$ by $0.0001$ to get $0.0036885$. Therefore, the final answer is $0.0036885$.