Finding the Fourth Proportional to 3,969.96, 5,476.04 and 2,555.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.96 : 5,476.04 = 2,555.48 : x
2. Step 2: Convert to fraction form
   3,969.96/5,476.04 = 2,555.48/x
3. Step 3: Cross multiply
   3,969.96x = 5,476.04 × 2,555.48
4. Step 4: Simplify right side
   3,969.96x = 13,993,910.70
5. Step 5: Solve for x
   x = 13,993,910.70/3,969.96
6. Step 6: Final answer
   x = 3,524.95