Finding the Fourth Proportional to 2,669.87, 3,684.20 and 1,550.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.87 : 3,684.20 = 1,550.45 : x
2. Step 2: Convert to fraction form
   2,669.87/3,684.20 = 1,550.45/x
3. Step 3: Cross multiply
   2,669.87x = 3,684.20 × 1,550.45
4. Step 4: Simplify right side
   2,669.87x = 5,712,141.72
5. Step 5: Solve for x
   x = 5,712,141.72/2,669.87
6. Step 6: Final answer
   x = 2,139.49