Finding the Fourth Proportional to 2,648.48, 3,971.43 and 799.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.48 : 3,971.43 = 799.25 : x
2. Step 2: Convert to fraction form
   2,648.48/3,971.43 = 799.25/x
3. Step 3: Cross multiply
   2,648.48x = 3,971.43 × 799.25
4. Step 4: Simplify right side
   2,648.48x = 3,174,145.57
5. Step 5: Solve for x
   x = 3,174,145.57/2,648.48
6. Step 6: Final answer
   x = 1,198.48