Finding the Fourth Proportional to 2,558.88, 3,841.56 and 2,176.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.88 : 3,841.56 = 2,176.56 : x
2. Step 2: Convert to fraction form
   2,558.88/3,841.56 = 2,176.56/x
3. Step 3: Cross multiply
   2,558.88x = 3,841.56 × 2,176.56
4. Step 4: Simplify right side
   2,558.88x = 8,361,385.83
5. Step 5: Solve for x
   x = 8,361,385.83/2,558.88
6. Step 6: Final answer
   x = 3,267.60