Finding the Fourth Proportional to 2,640.57, 3,643.94 and 1,461.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640.57 : 3,643.94 = 1,461.62 : x
2. Step 2: Convert to fraction form
   2,640.57/3,643.94 = 1,461.62/x
3. Step 3: Cross multiply
   2,640.57x = 3,643.94 × 1,461.62
4. Step 4: Simplify right side
   2,640.57x = 5,326,041.02
5. Step 5: Solve for x
   x = 5,326,041.02/2,640.57
6. Step 6: Final answer
   x = 2,017.00