Finding the Fourth Proportional to 3,690.10, 5,524.89 and 2,387.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690.10 : 5,524.89 = 2,387.62 : x
2. Step 2: Convert to fraction form
   3,690.10/5,524.89 = 2,387.62/x
3. Step 3: Cross multiply
   3,690.10x = 5,524.89 × 2,387.62
4. Step 4: Simplify right side
   3,690.10x = 13,191,337.86
5. Step 5: Solve for x
   x = 13,191,337.86/3,690.10
6. Step 6: Final answer
   x = 3,574.79