Finding the Fourth Proportional to 2,643.31, 3,647.78 and 1,464.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.31 : 3,647.78 = 1,464.40 : x
2. Step 2: Convert to fraction form
   2,643.31/3,647.78 = 1,464.40/x
3. Step 3: Cross multiply
   2,643.31x = 3,647.78 × 1,464.40
4. Step 4: Simplify right side
   2,643.31x = 5,341,809.03
5. Step 5: Solve for x
   x = 5,341,809.03/2,643.31
6. Step 6: Final answer
   x = 2,020.88