Finding the Fourth Proportional to 2,647.84, 3,971.94 and 798.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.84 : 3,971.94 = 798.82 : x
2. Step 2: Convert to fraction form
   2,647.84/3,971.94 = 798.82/x
3. Step 3: Cross multiply
   2,647.84x = 3,971.94 × 798.82
4. Step 4: Simplify right side
   2,647.84x = 3,172,865.11
5. Step 5: Solve for x
   x = 3,172,865.11/2,647.84
6. Step 6: Final answer
   x = 1,198.28