Finding the Fourth Proportional to 3,111.48, 4,676.43 and 2,882.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.48 : 4,676.43 = 2,882.31 : x
2. Step 2: Convert to fraction form
   3,111.48/4,676.43 = 2,882.31/x
3. Step 3: Cross multiply
   3,111.48x = 4,676.43 × 2,882.31
4. Step 4: Simplify right side
   3,111.48x = 13,478,920.95
5. Step 5: Solve for x
   x = 13,478,920.95/3,111.48
6. Step 6: Final answer
   x = 4,332.00