Finding the Fourth Proportional to 1,365.89, 2,049.78 and 717.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.89 : 2,049.78 = 717.08 : x
2. Step 2: Convert to fraction form
   1,365.89/2,049.78 = 717.08/x
3. Step 3: Cross multiply
   1,365.89x = 2,049.78 × 717.08
4. Step 4: Simplify right side
   1,365.89x = 1,469,856.24
5. Step 5: Solve for x
   x = 1,469,856.24/1,365.89
6. Step 6: Final answer
   x = 1,076.12