Finding the Fourth Proportional to 3,436.09, 5,160.19 and 2,558.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436.09 : 5,160.19 = 2,558.83 : x
2. Step 2: Convert to fraction form
   3,436.09/5,160.19 = 2,558.83/x
3. Step 3: Cross multiply
   3,436.09x = 5,160.19 × 2,558.83
4. Step 4: Simplify right side
   3,436.09x = 13,204,016.78
5. Step 5: Solve for x
   x = 13,204,016.78/3,436.09
6. Step 6: Final answer
   x = 3,842.75