Finding the Fourth Proportional to 2,489.56, 3,730.98 and 949.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489.56 : 3,730.98 = 949.72 : x
2. Step 2: Convert to fraction form
   2,489.56/3,730.98 = 949.72/x
3. Step 3: Cross multiply
   2,489.56x = 3,730.98 × 949.72
4. Step 4: Simplify right side
   2,489.56x = 3,543,386.33
5. Step 5: Solve for x
   x = 3,543,386.33/2,489.56
6. Step 6: Final answer
   x = 1,423.30