Finding the Fourth Proportional to 3,932.42, 5,426.82 and 2,164.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,932.42 : 5,426.82 = 2,164.15 : x
2. Step 2: Convert to fraction form
   3,932.42/5,426.82 = 2,164.15/x
3. Step 3: Cross multiply
   3,932.42x = 5,426.82 × 2,164.15
4. Step 4: Simplify right side
   3,932.42x = 11,744,425.37
5. Step 5: Solve for x
   x = 11,744,425.37/3,932.42
6. Step 6: Final answer
   x = 2,986.56