Finding the Fourth Proportional to 1,359.57, 1,874.57 and 1,149.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.57 : 1,874.57 = 1,149.38 : x
2. Step 2: Convert to fraction form
   1,359.57/1,874.57 = 1,149.38/x
3. Step 3: Cross multiply
   1,359.57x = 1,874.57 × 1,149.38
4. Step 4: Simplify right side
   1,359.57x = 2,154,578.15
5. Step 5: Solve for x
   x = 2,154,578.15/1,359.57
6. Step 6: Final answer
   x = 1,584.75