Finding the Fourth Proportional to 1,227.38, 1,693.06 and 755.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.38 : 1,693.06 = 755.53 : x
2. Step 2: Convert to fraction form
   1,227.38/1,693.06 = 755.53/x
3. Step 3: Cross multiply
   1,227.38x = 1,693.06 × 755.53
4. Step 4: Simplify right side
   1,227.38x = 1,279,151.50
5. Step 5: Solve for x
   x = 1,279,151.50/1,227.38
6. Step 6: Final answer
   x = 1,042.18