Finding the Fourth Proportional to 1,123.39, 1,550.91 and 750.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.39 : 1,550.91 = 750.89 : x
2. Step 2: Convert to fraction form
   1,123.39/1,550.91 = 750.89/x
3. Step 3: Cross multiply
   1,123.39x = 1,550.91 × 750.89
4. Step 4: Simplify right side
   1,123.39x = 1,164,562.81
5. Step 5: Solve for x
   x = 1,164,562.81/1,123.39
6. Step 6: Final answer
   x = 1,036.65