Finding the Fourth Proportional to 2,104.68, 3,156.72 and 717.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.68 : 3,156.72 = 717.96 : x
2. Step 2: Convert to fraction form
   2,104.68/3,156.72 = 717.96/x
3. Step 3: Cross multiply
   2,104.68x = 3,156.72 × 717.96
4. Step 4: Simplify right side
   2,104.68x = 2,266,398.69
5. Step 5: Solve for x
   x = 2,266,398.69/2,104.68
6. Step 6: Final answer
   x = 1,076.84