Finding the Fourth Proportional to 1,123.43, 1,551.06 and 704.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.43 : 1,551.06 = 704.40 : x
2. Step 2: Convert to fraction form
   1,123.43/1,551.06 = 704.40/x
3. Step 3: Cross multiply
   1,123.43x = 1,551.06 × 704.40
4. Step 4: Simplify right side
   1,123.43x = 1,092,566.66
5. Step 5: Solve for x
   x = 1,092,566.66/1,123.43
6. Step 6: Final answer
   x = 972.53