Finding the Fourth Proportional to 2,058.12, 3,087.45 and 1,083.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.12 : 3,087.45 = 1,083.69 : x
2. Step 2: Convert to fraction form
   2,058.12/3,087.45 = 1,083.69/x
3. Step 3: Cross multiply
   2,058.12x = 3,087.45 × 1,083.69
4. Step 4: Simplify right side
   2,058.12x = 3,345,838.69
5. Step 5: Solve for x
   x = 3,345,838.69/2,058.12
6. Step 6: Final answer
   x = 1,625.68