Finding the Fourth Proportional to 4,605.59, 6,353.82 and 3,209.15

Step by Step Solution

1. Step 1: Write the proportion equation
   4,605.59 : 6,353.82 = 3,209.15 : x
2. Step 2: Convert to fraction form
   4,605.59/6,353.82 = 3,209.15/x
3. Step 3: Cross multiply
   4,605.59x = 6,353.82 × 3,209.15
4. Step 4: Simplify right side
   4,605.59x = 20,390,361.45
5. Step 5: Solve for x
   x = 20,390,361.45/4,605.59
6. Step 6: Final answer
   x = 4,427.31