Finding the Fourth Proportional to 2,275.43, 3,137.89 and 1,478.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.43 : 3,137.89 = 1,478.97 : x
2. Step 2: Convert to fraction form
   2,275.43/3,137.89 = 1,478.97/x
3. Step 3: Cross multiply
   2,275.43x = 3,137.89 × 1,478.97
4. Step 4: Simplify right side
   2,275.43x = 4,640,841.48
5. Step 5: Solve for x
   x = 4,640,841.48/2,275.43
6. Step 6: Final answer
   x = 2,039.55