Finding the Fourth Proportional to 2,443.78, 3,663.60 and 799.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.78 : 3,663.60 = 799.84 : x
2. Step 2: Convert to fraction form
   2,443.78/3,663.60 = 799.84/x
3. Step 3: Cross multiply
   2,443.78x = 3,663.60 × 799.84
4. Step 4: Simplify right side
   2,443.78x = 2,930,293.82
5. Step 5: Solve for x
   x = 2,930,293.82/2,443.78
6. Step 6: Final answer
   x = 1,199.08