Finding the Fourth Proportional to 3,947.53, 5,445.15 and 2,353.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947.53 : 5,445.15 = 2,353.10 : x
2. Step 2: Convert to fraction form
   3,947.53/5,445.15 = 2,353.10/x
3. Step 3: Cross multiply
   3,947.53x = 5,445.15 × 2,353.10
4. Step 4: Simplify right side
   3,947.53x = 12,812,996.08
5. Step 5: Solve for x
   x = 12,812,996.08/3,947.53
6. Step 6: Final answer
   x = 3,245.83