Finding the Fourth Proportional to 2,216.50, 3,058.16 and 1,272.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.50 : 3,058.16 = 1,272.24 : x
2. Step 2: Convert to fraction form
   2,216.50/3,058.16 = 1,272.24/x
3. Step 3: Cross multiply
   2,216.50x = 3,058.16 × 1,272.24
4. Step 4: Simplify right side
   2,216.50x = 3,890,707.12
5. Step 5: Solve for x
   x = 3,890,707.12/2,216.50
6. Step 6: Final answer
   x = 1,755.34