Finding the Fourth Proportional to 2,612.18, 3,604.90 and 1,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.18 : 3,604.90 = 1,550.50 : x
2. Step 2: Convert to fraction form
   2,612.18/3,604.90 = 1,550.50/x
3. Step 3: Cross multiply
   2,612.18x = 3,604.90 × 1,550.50
4. Step 4: Simplify right side
   2,612.18x = 5,589,397.45
5. Step 5: Solve for x
   x = 5,589,397.45/2,612.18
6. Step 6: Final answer
   x = 2,139.74