Finding the Fourth Proportional to 2,847.96, 4,275.72 and 2,439.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,847.96 : 4,275.72 = 2,439.72 : x
2. Step 2: Convert to fraction form
   2,847.96/4,275.72 = 2,439.72/x
3. Step 3: Cross multiply
   2,847.96x = 4,275.72 × 2,439.72
4. Step 4: Simplify right side
   2,847.96x = 10,431,559.60
5. Step 5: Solve for x
   x = 10,431,559.60/2,847.96
6. Step 6: Final answer
   x = 3,662.82