Finding the Fourth Proportional to 1,123.98, 1,550.88 and 730.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.98 : 1,550.88 = 730.98 : x
2. Step 2: Convert to fraction form
   1,123.98/1,550.88 = 730.98/x
3. Step 3: Cross multiply
   1,123.98x = 1,550.88 × 730.98
4. Step 4: Simplify right side
   1,123.98x = 1,133,662.26
5. Step 5: Solve for x
   x = 1,133,662.26/1,123.98
6. Step 6: Final answer
   x = 1,008.61