Finding the Fourth Proportional to 3,320.78, 4,584.83 and 2,063.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,320.78 : 4,584.83 = 2,063.21 : x
2. Step 2: Convert to fraction form
   3,320.78/4,584.83 = 2,063.21/x
3. Step 3: Cross multiply
   3,320.78x = 4,584.83 × 2,063.21
4. Step 4: Simplify right side
   3,320.78x = 9,459,433.86
5. Step 5: Solve for x
   x = 9,459,433.86/3,320.78
6. Step 6: Final answer
   x = 2,848.56