Finding the Fourth Proportional to 3,947.91, 5,447.93 and 2,269.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947.91 : 5,447.93 = 2,269.15 : x
2. Step 2: Convert to fraction form
   3,947.91/5,447.93 = 2,269.15/x
3. Step 3: Cross multiply
   3,947.91x = 5,447.93 × 2,269.15
4. Step 4: Simplify right side
   3,947.91x = 12,362,145.39
5. Step 5: Solve for x
   x = 12,362,145.39/3,947.91
6. Step 6: Final answer
   x = 3,131.32