Finding the Fourth Proportional to 2,640.34, 3,643.59 and 1,461.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640.34 : 3,643.59 = 1,461.39 : x
2. Step 2: Convert to fraction form
   2,640.34/3,643.59 = 1,461.39/x
3. Step 3: Cross multiply
   2,640.34x = 3,643.59 × 1,461.39
4. Step 4: Simplify right side
   2,640.34x = 5,324,705.99
5. Step 5: Solve for x
   x = 5,324,705.99/2,640.34
6. Step 6: Final answer
   x = 2,016.67