Finding the Fourth Proportional to 2,648.75, 3,973.46 and 799.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.75 : 3,973.46 = 799.92 : x
2. Step 2: Convert to fraction form
   2,648.75/3,973.46 = 799.92/x
3. Step 3: Cross multiply
   2,648.75x = 3,973.46 × 799.92
4. Step 4: Simplify right side
   2,648.75x = 3,178,446.12
5. Step 5: Solve for x
   x = 3,178,446.12/2,648.75
6. Step 6: Final answer
   x = 1,199.98