Finding the Fourth Proportional to 5,384.22, 7,428.69 and 3,229.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,384.22 : 7,428.69 = 3,229.89 : x
2. Step 2: Convert to fraction form
   5,384.22/7,428.69 = 3,229.89/x
3. Step 3: Cross multiply
   5,384.22x = 7,428.69 × 3,229.89
4. Step 4: Simplify right side
   5,384.22x = 23,993,851.54
5. Step 5: Solve for x
   x = 23,993,851.54/5,384.22
6. Step 6: Final answer
   x = 4,456.33