Finding the Fourth Proportional to 2,648.34, 3,972.69 and 799.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.34 : 3,972.69 = 799.32 : x
2. Step 2: Convert to fraction form
   2,648.34/3,972.69 = 799.32/x
3. Step 3: Cross multiply
   2,648.34x = 3,972.69 × 799.32
4. Step 4: Simplify right side
   2,648.34x = 3,175,450.57
5. Step 5: Solve for x
   x = 3,175,450.57/2,648.34
6. Step 6: Final answer
   x = 1,199.03