Finding the Fourth Proportional to 1,123.71, 1,550.54 and 651.66

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.71 : 1,550.54 = 651.66 : x
2. Step 2: Convert to fraction form
   1,123.71/1,550.54 = 651.66/x
3. Step 3: Cross multiply
   1,123.71x = 1,550.54 × 651.66
4. Step 4: Simplify right side
   1,123.71x = 1,010,424.90
5. Step 5: Solve for x
   x = 1,010,424.90/1,123.71
6. Step 6: Final answer
   x = 899.19