Finding the Fourth Proportional to 2,715.38, 3,747.04 and 1,520.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.38 : 3,747.04 = 1,520.15 : x
2. Step 2: Convert to fraction form
   2,715.38/3,747.04 = 1,520.15/x
3. Step 3: Cross multiply
   2,715.38x = 3,747.04 × 1,520.15
4. Step 4: Simplify right side
   2,715.38x = 5,696,068.42
5. Step 5: Solve for x
   x = 5,696,068.42/2,715.38
6. Step 6: Final answer
   x = 2,097.71