Finding the Fourth Proportional to 2,643.17, 3,647.43 and 1,464.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.17 : 3,647.43 = 1,464.21 : x
2. Step 2: Convert to fraction form
   2,643.17/3,647.43 = 1,464.21/x
3. Step 3: Cross multiply
   2,643.17x = 3,647.43 × 1,464.21
4. Step 4: Simplify right side
   2,643.17x = 5,340,603.48
5. Step 5: Solve for x
   x = 5,340,603.48/2,643.17
6. Step 6: Final answer
   x = 2,020.53