Finding the Fourth Proportional to 3,964.55, 5,474.18 and 3,182.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.55 : 5,474.18 = 3,182.09 : x
2. Step 2: Convert to fraction form
   3,964.55/5,474.18 = 3,182.09/x
3. Step 3: Cross multiply
   3,964.55x = 5,474.18 × 3,182.09
4. Step 4: Simplify right side
   3,964.55x = 17,419,314.02
5. Step 5: Solve for x
   x = 17,419,314.02/3,964.55
6. Step 6: Final answer
   x = 4,393.77