Finding the Fourth Proportional to 2,443.29, 3,663.57 and 799.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.29 : 3,663.57 = 799.40 : x
2. Step 2: Convert to fraction form
   2,443.29/3,663.57 = 799.40/x
3. Step 3: Cross multiply
   2,443.29x = 3,663.57 × 799.40
4. Step 4: Simplify right side
   2,443.29x = 2,928,639.54
5. Step 5: Solve for x
   x = 2,928,639.54/2,443.29
6. Step 6: Final answer
   x = 1,198.65