Finding the Fourth Proportional to 1,123.83, 1,550.94 and 651.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.83 : 1,550.94 = 651.72 : x
2. Step 2: Convert to fraction form
   1,123.83/1,550.94 = 651.72/x
3. Step 3: Cross multiply
   1,123.83x = 1,550.94 × 651.72
4. Step 4: Simplify right side
   1,123.83x = 1,010,778.62
5. Step 5: Solve for x
   x = 1,010,778.62/1,123.83
6. Step 6: Final answer
   x = 899.41