Finding the Fourth Proportional to 3,279.89, 4,524.78 and 2,217.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,279.89 : 4,524.78 = 2,217.32 : x
2. Step 2: Convert to fraction form
   3,279.89/4,524.78 = 2,217.32/x
3. Step 3: Cross multiply
   3,279.89x = 4,524.78 × 2,217.32
4. Step 4: Simplify right side
   3,279.89x = 10,032,900.83
5. Step 5: Solve for x
   x = 10,032,900.83/3,279.89
6. Step 6: Final answer
   x = 3,058.91