Finding the Fourth Proportional to 1,046.69, 1,447.56 and 915.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.69 : 1,447.56 = 915.47 : x
2. Step 2: Convert to fraction form
   1,046.69/1,447.56 = 915.47/x
3. Step 3: Cross multiply
   1,046.69x = 1,447.56 × 915.47
4. Step 4: Simplify right side
   1,046.69x = 1,325,190.52
5. Step 5: Solve for x
   x = 1,325,190.52/1,046.69
6. Step 6: Final answer
   x = 1,266.08