Finding the Fourth Proportional to 3,955.32, 5,458.15 and 2,162.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,955.32 : 5,458.15 = 2,162.89 : x
2. Step 2: Convert to fraction form
   3,955.32/5,458.15 = 2,162.89/x
3. Step 3: Cross multiply
   3,955.32x = 5,458.15 × 2,162.89
4. Step 4: Simplify right side
   3,955.32x = 11,805,359.00
5. Step 5: Solve for x
   x = 11,805,359.00/3,955.32
6. Step 6: Final answer
   x = 2,984.68