Finding the Fourth Proportional to 2,139.54, 2,953.02 and 1,255.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.54 : 2,953.02 = 1,255.56 : x
2. Step 2: Convert to fraction form
   2,139.54/2,953.02 = 1,255.56/x
3. Step 3: Cross multiply
   2,139.54x = 2,953.02 × 1,255.56
4. Step 4: Simplify right side
   2,139.54x = 3,707,693.79
5. Step 5: Solve for x
   x = 3,707,693.79/2,139.54
6. Step 6: Final answer
   x = 1,732.94