Finding the Fourth Proportional to 2,648.00, 3,972.38 and 798.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.00 : 3,972.38 = 798.91 : x
2. Step 2: Convert to fraction form
   2,648.00/3,972.38 = 798.91/x
3. Step 3: Cross multiply
   2,648.00x = 3,972.38 × 798.91
4. Step 4: Simplify right side
   2,648.00x = 3,173,560.18
5. Step 5: Solve for x
   x = 3,173,560.18/2,648.00
6. Step 6: Final answer
   x = 1,198.47