Finding the Fourth Proportional to 2,399.72, 3,598.91 and 1,520.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.72 : 3,598.91 = 1,520.92 : x
2. Step 2: Convert to fraction form
   2,399.72/3,598.91 = 1,520.92/x
3. Step 3: Cross multiply
   2,399.72x = 3,598.91 × 1,520.92
4. Step 4: Simplify right side
   2,399.72x = 5,473,654.20
5. Step 5: Solve for x
   x = 5,473,654.20/2,399.72
6. Step 6: Final answer
   x = 2,280.96