Finding the Fourth Proportional to 1,273.42, 1,757.33 and 742.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.42 : 1,757.33 = 742.27 : x
2. Step 2: Convert to fraction form
   1,273.42/1,757.33 = 742.27/x
3. Step 3: Cross multiply
   1,273.42x = 1,757.33 × 742.27
4. Step 4: Simplify right side
   1,273.42x = 1,304,405.82
5. Step 5: Solve for x
   x = 1,304,405.82/1,273.42
6. Step 6: Final answer
   x = 1,024.33