Finding the Fourth Proportional to 2,715.39, 3,747.42 and 1,520.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.39 : 3,747.42 = 1,520.49 : x
2. Step 2: Convert to fraction form
   2,715.39/3,747.42 = 1,520.49/x
3. Step 3: Cross multiply
   2,715.39x = 3,747.42 × 1,520.49
4. Step 4: Simplify right side
   2,715.39x = 5,697,899.70
5. Step 5: Solve for x
   x = 5,697,899.70/2,715.39
6. Step 6: Final answer
   x = 2,098.37