Finding the Fourth Proportional to 2,648.89, 3,973.14 and 799.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.89 : 3,973.14 = 799.96 : x
2. Step 2: Convert to fraction form
   2,648.89/3,973.14 = 799.96/x
3. Step 3: Cross multiply
   2,648.89x = 3,973.14 × 799.96
4. Step 4: Simplify right side
   2,648.89x = 3,178,353.07
5. Step 5: Solve for x
   x = 3,178,353.07/2,648.89
6. Step 6: Final answer
   x = 1,199.88