Finding the Fourth Proportional to 2,433.12, 3,354.78 and 1,687.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,433.12 : 3,354.78 = 1,687.72 : x
2. Step 2: Convert to fraction form
   2,433.12/3,354.78 = 1,687.72/x
3. Step 3: Cross multiply
   2,433.12x = 3,354.78 × 1,687.72
4. Step 4: Simplify right side
   2,433.12x = 5,661,929.30
5. Step 5: Solve for x
   x = 5,661,929.30/2,433.12
6. Step 6: Final answer
   x = 2,327.02