Finding the Fourth Proportional to 6,522.53, 9,785.22 and 2,139.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,522.53 : 9,785.22 = 2,139.83 : x
2. Step 2: Convert to fraction form
   6,522.53/9,785.22 = 2,139.83/x
3. Step 3: Cross multiply
   6,522.53x = 9,785.22 × 2,139.83
4. Step 4: Simplify right side
   6,522.53x = 20,938,662.54
5. Step 5: Solve for x
   x = 20,938,662.54/6,522.53
6. Step 6: Final answer
   x = 3,210.20