Finding the Fourth Proportional to 2,643.40, 3,647.77 and 1,464.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.40 : 3,647.77 = 1,464.45 : x
2. Step 2: Convert to fraction form
   2,643.40/3,647.77 = 1,464.45/x
3. Step 3: Cross multiply
   2,643.40x = 3,647.77 × 1,464.45
4. Step 4: Simplify right side
   2,643.40x = 5,341,976.78
5. Step 5: Solve for x
   x = 5,341,976.78/2,643.40
6. Step 6: Final answer
   x = 2,020.87