Finding the Fourth Proportional to 3,181.89, 4,387.98 and 2,435.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,181.89 : 4,387.98 = 2,435.88 : x
2. Step 2: Convert to fraction form
   3,181.89/4,387.98 = 2,435.88/x
3. Step 3: Cross multiply
   3,181.89x = 4,387.98 × 2,435.88
4. Step 4: Simplify right side
   3,181.89x = 10,688,592.72
5. Step 5: Solve for x
   x = 10,688,592.72/3,181.89
6. Step 6: Final answer
   x = 3,359.20