Finding the Fourth Proportional to 1,124.58, 1,551.54 and 681.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124.58 : 1,551.54 = 681.72 : x
2. Step 2: Convert to fraction form
   1,124.58/1,551.54 = 681.72/x
3. Step 3: Cross multiply
   1,124.58x = 1,551.54 × 681.72
4. Step 4: Simplify right side
   1,124.58x = 1,057,715.85
5. Step 5: Solve for x
   x = 1,057,715.85/1,124.58
6. Step 6: Final answer
   x = 940.54