Finding the Fourth Proportional to 2,591.57, 3,889.38 and 949.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.57 : 3,889.38 = 949.16 : x
2. Step 2: Convert to fraction form
   2,591.57/3,889.38 = 949.16/x
3. Step 3: Cross multiply
   2,591.57x = 3,889.38 × 949.16
4. Step 4: Simplify right side
   2,591.57x = 3,691,643.92
5. Step 5: Solve for x
   x = 3,691,643.92/2,591.57
6. Step 6: Final answer
   x = 1,424.48