Finding the Fourth Proportional to 3,658.72, 5,475.30 and 2,992.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658.72 : 5,475.30 = 2,992.90 : x
2. Step 2: Convert to fraction form
   3,658.72/5,475.30 = 2,992.90/x
3. Step 3: Cross multiply
   3,658.72x = 5,475.30 × 2,992.90
4. Step 4: Simplify right side
   3,658.72x = 16,387,025.37
5. Step 5: Solve for x
   x = 16,387,025.37/3,658.72
6. Step 6: Final answer
   x = 4,478.90