Finding the Fourth Proportional to 2,139.75, 2,951.24 and 1,477.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.75 : 2,951.24 = 1,477.71 : x
2. Step 2: Convert to fraction form
   2,139.75/2,951.24 = 1,477.71/x
3. Step 3: Cross multiply
   2,139.75x = 2,951.24 × 1,477.71
4. Step 4: Simplify right side
   2,139.75x = 4,361,069.47
5. Step 5: Solve for x
   x = 4,361,069.47/2,139.75
6. Step 6: Final answer
   x = 2,038.12