Finding the Fourth Proportional to 1,123.22, 1,549.70 and 791.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.22 : 1,549.70 = 791.82 : x
2. Step 2: Convert to fraction form
   1,123.22/1,549.70 = 791.82/x
3. Step 3: Cross multiply
   1,123.22x = 1,549.70 × 791.82
4. Step 4: Simplify right side
   1,123.22x = 1,227,083.45
5. Step 5: Solve for x
   x = 1,227,083.45/1,123.22
6. Step 6: Final answer
   x = 1,092.47