Finding the Fourth Proportional to 5,722.05, 7,896.60 and 3,204.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,722.05 : 7,896.60 = 3,204.15 : x
2. Step 2: Convert to fraction form
   5,722.05/7,896.60 = 3,204.15/x
3. Step 3: Cross multiply
   5,722.05x = 7,896.60 × 3,204.15
4. Step 4: Simplify right side
   5,722.05x = 25,301,890.89
5. Step 5: Solve for x
   x = 25,301,890.89/5,722.05
6. Step 6: Final answer
   x = 4,421.82