Finding the Fourth Proportional to 3,630.72, 5,010.42 and 2,058.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,630.72 : 5,010.42 = 2,058.78 : x
2. Step 2: Convert to fraction form
   3,630.72/5,010.42 = 2,058.78/x
3. Step 3: Cross multiply
   3,630.72x = 5,010.42 × 2,058.78
4. Step 4: Simplify right side
   3,630.72x = 10,315,352.49
5. Step 5: Solve for x
   x = 10,315,352.49/3,630.72
6. Step 6: Final answer
   x = 2,841.13