Finding the Fourth Proportional to 3,969.27, 5,475.11 and 2,554.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.27 : 5,475.11 = 2,554.81 : x
2. Step 2: Convert to fraction form
   3,969.27/5,475.11 = 2,554.81/x
3. Step 3: Cross multiply
   3,969.27x = 5,475.11 × 2,554.81
4. Step 4: Simplify right side
   3,969.27x = 13,987,865.78
5. Step 5: Solve for x
   x = 13,987,865.78/3,969.27
6. Step 6: Final answer
   x = 3,524.04