Finding the Fourth Proportional to 4,643.39, 6,404.30 and 3,227.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4,643.39 : 6,404.30 = 3,227.05 : x
2. Step 2: Convert to fraction form
   4,643.39/6,404.30 = 3,227.05/x
3. Step 3: Cross multiply
   4,643.39x = 6,404.30 × 3,227.05
4. Step 4: Simplify right side
   4,643.39x = 20,667,000.29
5. Step 5: Solve for x
   x = 20,667,000.29/4,643.39
6. Step 6: Final answer
   x = 4,450.84