Finding the Fourth Proportional to 2,640.47, 3,643.86 and 1,461.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640.47 : 3,643.86 = 1,461.58 : x
2. Step 2: Convert to fraction form
   2,640.47/3,643.86 = 1,461.58/x
3. Step 3: Cross multiply
   2,640.47x = 3,643.86 × 1,461.58
4. Step 4: Simplify right side
   2,640.47x = 5,325,792.90
5. Step 5: Solve for x
   x = 5,325,792.90/2,640.47
6. Step 6: Final answer
   x = 2,016.99