Finding the Fourth Proportional to 3,258.72, 4,495.37 and 2,078.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,258.72 : 4,495.37 = 2,078.55 : x
2. Step 2: Convert to fraction form
   3,258.72/4,495.37 = 2,078.55/x
3. Step 3: Cross multiply
   3,258.72x = 4,495.37 × 2,078.55
4. Step 4: Simplify right side
   3,258.72x = 9,343,840.92
5. Step 5: Solve for x
   x = 9,343,840.92/3,258.72
6. Step 6: Final answer
   x = 2,867.33