Finding the Fourth Proportional to 3,630.21, 5,009.69 and 2,058.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,630.21 : 5,009.69 = 2,058.31 : x
2. Step 2: Convert to fraction form
   3,630.21/5,009.69 = 2,058.31/x
3. Step 3: Cross multiply
   3,630.21x = 5,009.69 × 2,058.31
4. Step 4: Simplify right side
   3,630.21x = 10,311,469.98
5. Step 5: Solve for x
   x = 10,311,469.98/3,630.21
6. Step 6: Final answer
   x = 2,840.46