Finding the Fourth Proportional to 1,123.67, 1,550.24 and 681.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.67 : 1,550.24 = 681.41 : x
2. Step 2: Convert to fraction form
   1,123.67/1,550.24 = 681.41/x
3. Step 3: Cross multiply
   1,123.67x = 1,550.24 × 681.41
4. Step 4: Simplify right side
   1,123.67x = 1,056,343.34
5. Step 5: Solve for x
   x = 1,056,343.34/1,123.67
6. Step 6: Final answer
   x = 940.09