Finding the Fourth Proportional to 2,715.72, 3,747.40 and 1,520.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.72 : 3,747.40 = 1,520.68 : x
2. Step 2: Convert to fraction form
   2,715.72/3,747.40 = 1,520.68/x
3. Step 3: Cross multiply
   2,715.72x = 3,747.40 × 1,520.68
4. Step 4: Simplify right side
   2,715.72x = 5,698,596.23
5. Step 5: Solve for x
   x = 5,698,596.23/2,715.72
6. Step 6: Final answer
   x = 2,098.37