Finding the Fourth Proportional to 3,971.88, 5,476.52 and 3,223.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971.88 : 5,476.52 = 3,223.48 : x
2. Step 2: Convert to fraction form
   3,971.88/5,476.52 = 3,223.48/x
3. Step 3: Cross multiply
   3,971.88x = 5,476.52 × 3,223.48
4. Step 4: Simplify right side
   3,971.88x = 17,653,452.69
5. Step 5: Solve for x
   x = 17,653,452.69/3,971.88
6. Step 6: Final answer
   x = 4,444.61