Finding the Fourth Proportional to 3,111.92, 4,664.69 and 2,000.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.92 : 4,664.69 = 2,000.88 : x
2. Step 2: Convert to fraction form
   3,111.92/4,664.69 = 2,000.88/x
3. Step 3: Cross multiply
   3,111.92x = 4,664.69 × 2,000.88
4. Step 4: Simplify right side
   3,111.92x = 9,333,469.31
5. Step 5: Solve for x
   x = 9,333,469.31/3,111.92
6. Step 6: Final answer
   x = 2,999.27