Finding the Fourth Proportional to 2,648.30, 3,971.25 and 799.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.30 : 3,971.25 = 799.07 : x
2. Step 2: Convert to fraction form
   2,648.30/3,971.25 = 799.07/x
3. Step 3: Cross multiply
   2,648.30x = 3,971.25 × 799.07
4. Step 4: Simplify right side
   2,648.30x = 3,173,286.88
5. Step 5: Solve for x
   x = 3,173,286.88/2,648.30
6. Step 6: Final answer
   x = 1,198.24