Finding the Fourth Proportional to 3,968.27, 5,473.73 and 2,553.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.27 : 5,473.73 = 2,553.81 : x
2. Step 2: Convert to fraction form
   3,968.27/5,473.73 = 2,553.81/x
3. Step 3: Cross multiply
   3,968.27x = 5,473.73 × 2,553.81
4. Step 4: Simplify right side
   3,968.27x = 13,978,852.27
5. Step 5: Solve for x
   x = 13,978,852.27/3,968.27
6. Step 6: Final answer
   x = 3,522.66