Finding the Fourth Proportional to 2,176.78, 3,258.78 and 1,352.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176.78 : 3,258.78 = 1,352.55 : x
2. Step 2: Convert to fraction form
   2,176.78/3,258.78 = 1,352.55/x
3. Step 3: Cross multiply
   2,176.78x = 3,258.78 × 1,352.55
4. Step 4: Simplify right side
   2,176.78x = 4,407,662.89
5. Step 5: Solve for x
   x = 4,407,662.89/2,176.78
6. Step 6: Final answer
   x = 2,024.85