Finding the Fourth Proportional to 1,109.30, 1,531.03 and 922.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.30 : 1,531.03 = 922.54 : x
2. Step 2: Convert to fraction form
   1,109.30/1,531.03 = 922.54/x
3. Step 3: Cross multiply
   1,109.30x = 1,531.03 × 922.54
4. Step 4: Simplify right side
   1,109.30x = 1,412,436.42
5. Step 5: Solve for x
   x = 1,412,436.42/1,109.30
6. Step 6: Final answer
   x = 1,273.27