Finding the Fourth Proportional to 1,123.82, 1,551.12 and 730.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.82 : 1,551.12 = 730.16 : x
2. Step 2: Convert to fraction form
   1,123.82/1,551.12 = 730.16/x
3. Step 3: Cross multiply
   1,123.82x = 1,551.12 × 730.16
4. Step 4: Simplify right side
   1,123.82x = 1,132,565.78
5. Step 5: Solve for x
   x = 1,132,565.78/1,123.82
6. Step 6: Final answer
   x = 1,007.78