Finding the Fourth Proportional to 1,049.34, 1,447.83 and 629.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.34 : 1,447.83 = 629.58 : x
2. Step 2: Convert to fraction form
   1,049.34/1,447.83 = 629.58/x
3. Step 3: Cross multiply
   1,049.34x = 1,447.83 × 629.58
4. Step 4: Simplify right side
   1,049.34x = 911,524.81
5. Step 5: Solve for x
   x = 911,524.81/1,049.34
6. Step 6: Final answer
   x = 868.66