Finding the Fourth Proportional to 2,039.05, 3,057.76 and 1,258.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.05 : 3,057.76 = 1,258.82 : x
2. Step 2: Convert to fraction form
   2,039.05/3,057.76 = 1,258.82/x
3. Step 3: Cross multiply
   2,039.05x = 3,057.76 × 1,258.82
4. Step 4: Simplify right side
   2,039.05x = 3,849,169.44
5. Step 5: Solve for x
   x = 3,849,169.44/2,039.05
6. Step 6: Final answer
   x = 1,887.73