Finding the Fourth Proportional to 2,439.69, 3,367.89 and 1,445.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.69 : 3,367.89 = 1,445.82 : x
2. Step 2: Convert to fraction form
   2,439.69/3,367.89 = 1,445.82/x
3. Step 3: Cross multiply
   2,439.69x = 3,367.89 × 1,445.82
4. Step 4: Simplify right side
   2,439.69x = 4,869,362.72
5. Step 5: Solve for x
   x = 4,869,362.72/2,439.69
6. Step 6: Final answer
   x = 1,995.89