Finding the Fourth Proportional to 1,123.52, 1,686.24 and 896.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.52 : 1,686.24 = 896.96 : x
2. Step 2: Convert to fraction form
   1,123.52/1,686.24 = 896.96/x
3. Step 3: Cross multiply
   1,123.52x = 1,686.24 × 896.96
4. Step 4: Simplify right side
   1,123.52x = 1,512,489.83
5. Step 5: Solve for x
   x = 1,512,489.83/1,123.52
6. Step 6: Final answer
   x = 1,346.21