Finding the Fourth Proportional to 2,728.79, 3,766.04 and 1,550.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.79 : 3,766.04 = 1,550.07 : x
2. Step 2: Convert to fraction form
   2,728.79/3,766.04 = 1,550.07/x
3. Step 3: Cross multiply
   2,728.79x = 3,766.04 × 1,550.07
4. Step 4: Simplify right side
   2,728.79x = 5,837,617.87
5. Step 5: Solve for x
   x = 5,837,617.87/2,728.79
6. Step 6: Final answer
   x = 2,139.27