Finding the Fourth Proportional to 3,945.98, 5,445.96 and 3,281.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.98 : 5,445.96 = 3,281.69 : x
2. Step 2: Convert to fraction form
   3,945.98/5,445.96 = 3,281.69/x
3. Step 3: Cross multiply
   3,945.98x = 5,445.96 × 3,281.69
4. Step 4: Simplify right side
   3,945.98x = 17,871,952.47
5. Step 5: Solve for x
   x = 17,871,952.47/3,945.98
6. Step 6: Final answer
   x = 4,529.15