Finding the Fourth Proportional to 2,947.46, 4,418.15 and 1,305.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947.46 : 4,418.15 = 1,305.18 : x
2. Step 2: Convert to fraction form
   2,947.46/4,418.15 = 1,305.18/x
3. Step 3: Cross multiply
   2,947.46x = 4,418.15 × 1,305.18
4. Step 4: Simplify right side
   2,947.46x = 5,766,474.49
5. Step 5: Solve for x
   x = 5,766,474.49/2,947.46
6. Step 6: Final answer
   x = 1,956.42