Finding the Fourth Proportional to 2,256.84, 3,385.02 and 717.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.84 : 3,385.02 = 717.72 : x
2. Step 2: Convert to fraction form
   2,256.84/3,385.02 = 717.72/x
3. Step 3: Cross multiply
   2,256.84x = 3,385.02 × 717.72
4. Step 4: Simplify right side
   2,256.84x = 2,429,496.55
5. Step 5: Solve for x
   x = 2,429,496.55/2,256.84
6. Step 6: Final answer
   x = 1,076.50