Finding the Fourth Proportional to 2,058.77, 3,085.47 and 1,798.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.77 : 3,085.47 = 1,798.15 : x
2. Step 2: Convert to fraction form
   2,058.77/3,085.47 = 1,798.15/x
3. Step 3: Cross multiply
   2,058.77x = 3,085.47 × 1,798.15
4. Step 4: Simplify right side
   2,058.77x = 5,548,137.88
5. Step 5: Solve for x
   x = 5,548,137.88/2,058.77
6. Step 6: Final answer
   x = 2,694.88