Finding the Fourth Proportional to 3,947.48, 5,445.81 and 2,268.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947.48 : 5,445.81 = 2,268.50 : x
2. Step 2: Convert to fraction form
   3,947.48/5,445.81 = 2,268.50/x
3. Step 3: Cross multiply
   3,947.48x = 5,445.81 × 2,268.50
4. Step 4: Simplify right side
   3,947.48x = 12,353,819.99
5. Step 5: Solve for x
   x = 12,353,819.99/3,947.48
6. Step 6: Final answer
   x = 3,129.55