Finding the Fourth Proportional to 3,631.20, 5,010.84 and 2,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,631.20 : 5,010.84 = 2,058.72 : x
2. Step 2: Convert to fraction form
   3,631.20/5,010.84 = 2,058.72/x
3. Step 3: Cross multiply
   3,631.20x = 5,010.84 × 2,058.72
4. Step 4: Simplify right side
   3,631.20x = 10,315,916.52
5. Step 5: Solve for x
   x = 10,315,916.52/3,631.20
6. Step 6: Final answer
   x = 2,840.91