Finding the Fourth Proportional to 3,932.37, 5,426.71 and 2,164.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,932.37 : 5,426.71 = 2,164.01 : x
2. Step 2: Convert to fraction form
   3,932.37/5,426.71 = 2,164.01/x
3. Step 3: Cross multiply
   3,932.37x = 5,426.71 × 2,164.01
4. Step 4: Simplify right side
   3,932.37x = 11,743,452.69
5. Step 5: Solve for x
   x = 11,743,452.69/3,932.37
6. Step 6: Final answer
   x = 2,986.35