Finding the Fourth Proportional to 3,667.88, 5,505.48 and 2,025.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.88 : 5,505.48 = 2,025.20 : x
2. Step 2: Convert to fraction form
   3,667.88/5,505.48 = 2,025.20/x
3. Step 3: Cross multiply
   3,667.88x = 5,505.48 × 2,025.20
4. Step 4: Simplify right side
   3,667.88x = 11,149,711.86
5. Step 5: Solve for x
   x = 11,149,711.86/3,667.88
6. Step 6: Final answer
   x = 3,039.82