Finding the Fourth Proportional to 1,049.25, 1,447.37 and 629.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.25 : 1,447.37 = 629.47 : x
2. Step 2: Convert to fraction form
   1,049.25/1,447.37 = 629.47/x
3. Step 3: Cross multiply
   1,049.25x = 1,447.37 × 629.47
4. Step 4: Simplify right side
   1,049.25x = 911,077.02
5. Step 5: Solve for x
   x = 911,077.02/1,049.25
6. Step 6: Final answer
   x = 868.31