Finding the Fourth Proportional to 1,359.58, 1,874.56 and 1,149.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.58 : 1,874.56 = 1,149.38 : x
2. Step 2: Convert to fraction form
   1,359.58/1,874.56 = 1,149.38/x
3. Step 3: Cross multiply
   1,359.58x = 1,874.56 × 1,149.38
4. Step 4: Simplify right side
   1,359.58x = 2,154,581.77
5. Step 5: Solve for x
   x = 2,154,581.77/1,359.58
6. Step 6: Final answer
   x = 1,584.74