Finding the Fourth Proportional to 1,111.38, 1,530 and 942.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.38 : 1,530 = 942.54 : x
2. Step 2: Convert to fraction form
   1,111.38/1,530 = 942.54/x
3. Step 3: Cross multiply
   1,111.38x = 1,530 × 942.54
4. Step 4: Simplify right side
   1,111.38x = 1,442,086.20
5. Step 5: Solve for x
   x = 1,442,086.20/1,111.38
6. Step 6: Final answer
   x = 1,297.56