Finding the Fourth Proportional to 3,982.32, 5,956.91 and 3,687.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,982.32 : 5,956.91 = 3,687.09 : x
2. Step 2: Convert to fraction form
   3,982.32/5,956.91 = 3,687.09/x
3. Step 3: Cross multiply
   3,982.32x = 5,956.91 × 3,687.09
4. Step 4: Simplify right side
   3,982.32x = 21,963,644.86
5. Step 5: Solve for x
   x = 21,963,644.86/3,982.32
6. Step 6: Final answer
   x = 5,515.29