Finding the Fourth Proportional to 1,123.47, 1,550.52 and 681.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.47 : 1,550.52 = 681.48 : x
2. Step 2: Convert to fraction form
   1,123.47/1,550.52 = 681.48/x
3. Step 3: Cross multiply
   1,123.47x = 1,550.52 × 681.48
4. Step 4: Simplify right side
   1,123.47x = 1,056,648.37
5. Step 5: Solve for x
   x = 1,056,648.37/1,123.47
6. Step 6: Final answer
   x = 940.52