Finding the Fourth Proportional to 3,872.50, 5,346.27 and 2,550.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,872.50 : 5,346.27 = 2,550.05 : x
2. Step 2: Convert to fraction form
   3,872.50/5,346.27 = 2,550.05/x
3. Step 3: Cross multiply
   3,872.50x = 5,346.27 × 2,550.05
4. Step 4: Simplify right side
   3,872.50x = 13,633,216.33
5. Step 5: Solve for x
   x = 13,633,216.33/3,872.50
6. Step 6: Final answer
   x = 3,520.52