Finding the Fourth Proportional to 2,443.38, 3,665.64 and 799.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.38 : 3,665.64 = 799.88 : x
2. Step 2: Convert to fraction form
   2,443.38/3,665.64 = 799.88/x
3. Step 3: Cross multiply
   2,443.38x = 3,665.64 × 799.88
4. Step 4: Simplify right side
   2,443.38x = 2,932,072.12
5. Step 5: Solve for x
   x = 2,932,072.12/2,443.38
6. Step 6: Final answer
   x = 1,200.01