Finding the Fourth Proportional to 2,797.86, 4,196.70 and 717.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,797.86 : 4,196.70 = 717.87 : x
2. Step 2: Convert to fraction form
   2,797.86/4,196.70 = 717.87/x
3. Step 3: Cross multiply
   2,797.86x = 4,196.70 × 717.87
4. Step 4: Simplify right side
   2,797.86x = 3,012,685.03
5. Step 5: Solve for x
   x = 3,012,685.03/2,797.86
6. Step 6: Final answer
   x = 1,076.78