Finding the Fourth Proportional to 1,806.49, 2,493.42 and 1,143.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.49 : 2,493.42 = 1,143.71 : x
2. Step 2: Convert to fraction form
   1,806.49/2,493.42 = 1,143.71/x
3. Step 3: Cross multiply
   1,806.49x = 2,493.42 × 1,143.71
4. Step 4: Simplify right side
   1,806.49x = 2,851,749.39
5. Step 5: Solve for x
   x = 2,851,749.39/1,806.49
6. Step 6: Final answer
   x = 1,578.61