Finding the Fourth Proportional to 2,640.56, 3,643.89 and 1,461.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640.56 : 3,643.89 = 1,461.68 : x
2. Step 2: Convert to fraction form
   2,640.56/3,643.89 = 1,461.68/x
3. Step 3: Cross multiply
   2,640.56x = 3,643.89 × 1,461.68
4. Step 4: Simplify right side
   2,640.56x = 5,326,201.14
5. Step 5: Solve for x
   x = 5,326,201.14/2,640.56
6. Step 6: Final answer
   x = 2,017.07