Finding the Fourth Proportional to 1,123.36, 1,550.27 and 626.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.36 : 1,550.27 = 626.06 : x
2. Step 2: Convert to fraction form
   1,123.36/1,550.27 = 626.06/x
3. Step 3: Cross multiply
   1,123.36x = 1,550.27 × 626.06
4. Step 4: Simplify right side
   1,123.36x = 970,562.04
5. Step 5: Solve for x
   x = 970,562.04/1,123.36
6. Step 6: Final answer
   x = 863.98