Finding the Fourth Proportional to 2,138.73, 2,951.33 and 1,254.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138.73 : 2,951.33 = 1,254.47 : x
2. Step 2: Convert to fraction form
   2,138.73/2,951.33 = 1,254.47/x
3. Step 3: Cross multiply
   2,138.73x = 2,951.33 × 1,254.47
4. Step 4: Simplify right side
   2,138.73x = 3,702,333.92
5. Step 5: Solve for x
   x = 3,702,333.92/2,138.73
6. Step 6: Final answer
   x = 1,731.09