Finding the Fourth Proportional to 2,648.69, 3,973.07 and 799.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.69 : 3,973.07 = 799.82 : x
2. Step 2: Convert to fraction form
   2,648.69/3,973.07 = 799.82/x
3. Step 3: Cross multiply
   2,648.69x = 3,973.07 × 799.82
4. Step 4: Simplify right side
   2,648.69x = 3,177,736.85
5. Step 5: Solve for x
   x = 3,177,736.85/2,648.69
6. Step 6: Final answer
   x = 1,199.74