Finding the Fourth Proportional to 3,198.51, 4,789.31 and 2,506.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,198.51 : 4,789.31 = 2,506.59 : x
2. Step 2: Convert to fraction form
   3,198.51/4,789.31 = 2,506.59/x
3. Step 3: Cross multiply
   3,198.51x = 4,789.31 × 2,506.59
4. Step 4: Simplify right side
   3,198.51x = 12,004,824.02
5. Step 5: Solve for x
   x = 12,004,824.02/3,198.51
6. Step 6: Final answer
   x = 3,753.26