Finding the Fourth Proportional to 3,932.01, 5,426.42 and 2,164.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,932.01 : 5,426.42 = 2,164.01 : x
2. Step 2: Convert to fraction form
   3,932.01/5,426.42 = 2,164.01/x
3. Step 3: Cross multiply
   3,932.01x = 5,426.42 × 2,164.01
4. Step 4: Simplify right side
   3,932.01x = 11,742,789.19
5. Step 5: Solve for x
   x = 11,742,789.19/3,932.01
6. Step 6: Final answer
   x = 2,986.46