Finding the Fourth Proportional to 1,929.38, 2,662.54 and 1,143.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.38 : 2,662.54 = 1,143.59 : x
2. Step 2: Convert to fraction form
   1,929.38/2,662.54 = 1,143.59/x
3. Step 3: Cross multiply
   1,929.38x = 2,662.54 × 1,143.59
4. Step 4: Simplify right side
   1,929.38x = 3,044,837.95
5. Step 5: Solve for x
   x = 3,044,837.95/1,929.38
6. Step 6: Final answer
   x = 1,578.15