Finding the Fourth Proportional to 1,033.83, 1,550.25 and 485.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.83 : 1,550.25 = 485.55 : x
2. Step 2: Convert to fraction form
   1,033.83/1,550.25 = 485.55/x
3. Step 3: Cross multiply
   1,033.83x = 1,550.25 × 485.55
4. Step 4: Simplify right side
   1,033.83x = 752,723.89
5. Step 5: Solve for x
   x = 752,723.89/1,033.83
6. Step 6: Final answer
   x = 728.09