Finding the Fourth Proportional to 2,640.30, 3,643.61 and 1,461.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640.30 : 3,643.61 = 1,461.35 : x
2. Step 2: Convert to fraction form
   2,640.30/3,643.61 = 1,461.35/x
3. Step 3: Cross multiply
   2,640.30x = 3,643.61 × 1,461.35
4. Step 4: Simplify right side
   2,640.30x = 5,324,563.95
5. Step 5: Solve for x
   x = 5,324,563.95/2,640.30
6. Step 6: Final answer
   x = 2,016.65