Finding the Fourth Proportional to 2,104.48, 3,155.17 and 717.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.48 : 3,155.17 = 717.45 : x
2. Step 2: Convert to fraction form
   2,104.48/3,155.17 = 717.45/x
3. Step 3: Cross multiply
   2,104.48x = 3,155.17 × 717.45
4. Step 4: Simplify right side
   2,104.48x = 2,263,676.72
5. Step 5: Solve for x
   x = 2,263,676.72/2,104.48
6. Step 6: Final answer
   x = 1,075.65