Finding the Fourth Proportional to 3,390.42, 5,087.46 and 2,568.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,390.42 : 5,087.46 = 2,568.54 : x
2. Step 2: Convert to fraction form
   3,390.42/5,087.46 = 2,568.54/x
3. Step 3: Cross multiply
   3,390.42x = 5,087.46 × 2,568.54
4. Step 4: Simplify right side
   3,390.42x = 13,067,344.51
5. Step 5: Solve for x
   x = 13,067,344.51/3,390.42
6. Step 6: Final answer
   x = 3,854.20