Finding the Fourth Proportional to 3,231.96, 4,460.16 and 1,815.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,231.96 : 4,460.16 = 1,815.72 : x
2. Step 2: Convert to fraction form
   3,231.96/4,460.16 = 1,815.72/x
3. Step 3: Cross multiply
   3,231.96x = 4,460.16 × 1,815.72
4. Step 4: Simplify right side
   3,231.96x = 8,098,401.72
5. Step 5: Solve for x
   x = 8,098,401.72/3,231.96
6. Step 6: Final answer
   x = 2,505.72