Finding the Fourth Proportional to 2,058.57, 2,839.47 and 1,351.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.57 : 2,839.47 = 1,351.07 : x
2. Step 2: Convert to fraction form
   2,058.57/2,839.47 = 1,351.07/x
3. Step 3: Cross multiply
   2,058.57x = 2,839.47 × 1,351.07
4. Step 4: Simplify right side
   2,058.57x = 3,836,308.54
5. Step 5: Solve for x
   x = 3,836,308.54/2,058.57
6. Step 6: Final answer
   x = 1,863.58