Finding the Fourth Proportional to 3,198.42, 4,789.33 and 2,739.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,198.42 : 4,789.33 = 2,739.15 : x
2. Step 2: Convert to fraction form
   3,198.42/4,789.33 = 2,739.15/x
3. Step 3: Cross multiply
   3,198.42x = 4,789.33 × 2,739.15
4. Step 4: Simplify right side
   3,198.42x = 13,118,686.42
5. Step 5: Solve for x
   x = 13,118,686.42/3,198.42
6. Step 6: Final answer
   x = 4,101.61