Finding the Fourth Proportional to 4,960.31, 7,439.74 and 1,449.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,960.31 : 7,439.74 = 1,449.38 : x
2. Step 2: Convert to fraction form
   4,960.31/7,439.74 = 1,449.38/x
3. Step 3: Cross multiply
   4,960.31x = 7,439.74 × 1,449.38
4. Step 4: Simplify right side
   4,960.31x = 10,783,025.34
5. Step 5: Solve for x
   x = 10,783,025.34/4,960.31
6. Step 6: Final answer
   x = 2,173.86