Finding the Fourth Proportional to 3,257.89, 4,888.59 and 2,162.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,257.89 : 4,888.59 = 2,162.77 : x
2. Step 2: Convert to fraction form
   3,257.89/4,888.59 = 2,162.77/x
3. Step 3: Cross multiply
   3,257.89x = 4,888.59 × 2,162.77
4. Step 4: Simplify right side
   3,257.89x = 10,572,895.79
5. Step 5: Solve for x
   x = 10,572,895.79/3,257.89
6. Step 6: Final answer
   x = 3,245.32