Finding the Fourth Proportional to 2,745.85, 4,118.57 and 798.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,745.85 : 4,118.57 = 798.10 : x
2. Step 2: Convert to fraction form
   2,745.85/4,118.57 = 798.10/x
3. Step 3: Cross multiply
   2,745.85x = 4,118.57 × 798.10
4. Step 4: Simplify right side
   2,745.85x = 3,287,044.83
5. Step 5: Solve for x
   x = 3,287,044.83/2,745.85
6. Step 6: Final answer
   x = 1,197.10