Finding the Fourth Proportional to 3,947.58, 5,447.04 and 2,269.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947.58 : 5,447.04 = 2,269.05 : x
2. Step 2: Convert to fraction form
   3,947.58/5,447.04 = 2,269.05/x
3. Step 3: Cross multiply
   3,947.58x = 5,447.04 × 2,269.05
4. Step 4: Simplify right side
   3,947.58x = 12,359,606.11
5. Step 5: Solve for x
   x = 12,359,606.11/3,947.58
6. Step 6: Final answer
   x = 3,130.93