Finding the Fourth Proportional to 1,843.83, 2,543.54 and 1,143.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,843.83 : 2,543.54 = 1,143.99 : x
2. Step 2: Convert to fraction form
   1,843.83/2,543.54 = 1,143.99/x
3. Step 3: Cross multiply
   1,843.83x = 2,543.54 × 1,143.99
4. Step 4: Simplify right side
   1,843.83x = 2,909,778.60
5. Step 5: Solve for x
   x = 2,909,778.60/1,843.83
6. Step 6: Final answer
   x = 1,578.12