Finding the Fourth Proportional to 2,058.48, 3,086.10 and 1,018.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.48 : 3,086.10 = 1,018.85 : x
2. Step 2: Convert to fraction form
   2,058.48/3,086.10 = 1,018.85/x
3. Step 3: Cross multiply
   2,058.48x = 3,086.10 × 1,018.85
4. Step 4: Simplify right side
   2,058.48x = 3,144,257.55
5. Step 5: Solve for x
   x = 3,144,257.55/2,058.48
6. Step 6: Final answer
   x = 1,527.47