Finding the Fourth Proportional to 2,647.46, 3,972.11 and 798.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.46 : 3,972.11 = 798.53 : x
2. Step 2: Convert to fraction form
   2,647.46/3,972.11 = 798.53/x
3. Step 3: Cross multiply
   2,647.46x = 3,972.11 × 798.53
4. Step 4: Simplify right side
   2,647.46x = 3,171,825.15
5. Step 5: Solve for x
   x = 3,171,825.15/2,647.46
6. Step 6: Final answer
   x = 1,198.06