Finding the Fourth Proportional to 1,123.32, 1,551.17 and 704.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.32 : 1,551.17 = 704.40 : x
2. Step 2: Convert to fraction form
   1,123.32/1,551.17 = 704.40/x
3. Step 3: Cross multiply
   1,123.32x = 1,551.17 × 704.40
4. Step 4: Simplify right side
   1,123.32x = 1,092,636.13
5. Step 5: Solve for x
   x = 1,092,636.13/1,123.32
6. Step 6: Final answer
   x = 972.69