Finding the Fourth Proportional to 1,123.66, 1,550.82 and 675.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.66 : 1,550.82 = 675.40 : x
2. Step 2: Convert to fraction form
   1,123.66/1,550.82 = 675.40/x
3. Step 3: Cross multiply
   1,123.66x = 1,550.82 × 675.40
4. Step 4: Simplify right side
   1,123.66x = 1,047,423.83
5. Step 5: Solve for x
   x = 1,047,423.83/1,123.66
6. Step 6: Final answer
   x = 932.15