Finding the Fourth Proportional to 2,825.83, 4,238.71 and 717.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,825.83 : 4,238.71 = 717.45 : x
2. Step 2: Convert to fraction form
   2,825.83/4,238.71 = 717.45/x
3. Step 3: Cross multiply
   2,825.83x = 4,238.71 × 717.45
4. Step 4: Simplify right side
   2,825.83x = 3,041,078.64
5. Step 5: Solve for x
   x = 3,041,078.64/2,825.83
6. Step 6: Final answer
   x = 1,076.17