Finding the Fourth Proportional to 1,643.38, 2,454.23 and 1,461.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643.38 : 2,454.23 = 1,461.94 : x
2. Step 2: Convert to fraction form
   1,643.38/2,454.23 = 1,461.94/x
3. Step 3: Cross multiply
   1,643.38x = 2,454.23 × 1,461.94
4. Step 4: Simplify right side
   1,643.38x = 3,587,934.53
5. Step 5: Solve for x
   x = 3,587,934.53/1,643.38
6. Step 6: Final answer
   x = 2,183.27