Finding the Fourth Proportional to 1,123.72, 1,550.98 and 651.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.72 : 1,550.98 = 651.94 : x
2. Step 2: Convert to fraction form
   1,123.72/1,550.98 = 651.94/x
3. Step 3: Cross multiply
   1,123.72x = 1,550.98 × 651.94
4. Step 4: Simplify right side
   1,123.72x = 1,011,145.90
5. Step 5: Solve for x
   x = 1,011,145.90/1,123.72
6. Step 6: Final answer
   x = 899.82