Finding the Fourth Proportional to 915.69, 1,262.42 and 757.74

Step by Step Solution

1. Step 1: Write the proportion equation
   915.69 : 1,262.42 = 757.74 : x
2. Step 2: Convert to fraction form
   915.69/1,262.42 = 757.74/x
3. Step 3: Cross multiply
   915.69x = 1,262.42 × 757.74
4. Step 4: Simplify right side
   915.69x = 956,579.82
5. Step 5: Solve for x
   x = 956,579.82/915.69
6. Step 6: Final answer
   x = 1,044.66