Finding the Fourth Proportional to 1,854.69, 2,559.38 and 1,058.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.69 : 2,559.38 = 1,058.06 : x
2. Step 2: Convert to fraction form
   1,854.69/2,559.38 = 1,058.06/x
3. Step 3: Cross multiply
   1,854.69x = 2,559.38 × 1,058.06
4. Step 4: Simplify right side
   1,854.69x = 2,707,959.52
5. Step 5: Solve for x
   x = 2,707,959.52/1,854.69
6. Step 6: Final answer
   x = 1,460.06