Finding the Fourth Proportional to 1,048.83, 1,447.37 and 717.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048.83 : 1,447.37 = 717.25 : x
2. Step 2: Convert to fraction form
   1,048.83/1,447.37 = 717.25/x
3. Step 3: Cross multiply
   1,048.83x = 1,447.37 × 717.25
4. Step 4: Simplify right side
   1,048.83x = 1,038,120.26
5. Step 5: Solve for x
   x = 1,038,120.26/1,048.83
6. Step 6: Final answer
   x = 989.79