Finding the Fourth Proportional to 2,058.59, 3,082.39 and 1,235.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.59 : 3,082.39 = 1,235.72 : x
2. Step 2: Convert to fraction form
   2,058.59/3,082.39 = 1,235.72/x
3. Step 3: Cross multiply
   2,058.59x = 3,082.39 × 1,235.72
4. Step 4: Simplify right side
   2,058.59x = 3,808,975.59
5. Step 5: Solve for x
   x = 3,808,975.59/2,058.59
6. Step 6: Final answer
   x = 1,850.28