Finding the Fourth Proportional to 2,640.16, 3,643.32 and 1,461.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640.16 : 3,643.32 = 1,461.21 : x
2. Step 2: Convert to fraction form
   2,640.16/3,643.32 = 1,461.21/x
3. Step 3: Cross multiply
   2,640.16x = 3,643.32 × 1,461.21
4. Step 4: Simplify right side
   2,640.16x = 5,323,655.62
5. Step 5: Solve for x
   x = 5,323,655.62/2,640.16
6. Step 6: Final answer
   x = 2,016.41