Finding the Fourth Proportional to 3,958.32, 5,462.37 and 2,189.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.32 : 5,462.37 = 2,189.91 : x
2. Step 2: Convert to fraction form
   3,958.32/5,462.37 = 2,189.91/x
3. Step 3: Cross multiply
   3,958.32x = 5,462.37 × 2,189.91
4. Step 4: Simplify right side
   3,958.32x = 11,962,098.69
5. Step 5: Solve for x
   x = 11,962,098.69/3,958.32
6. Step 6: Final answer
   x = 3,022.01