Finding the Fourth Proportional to 1,359.45, 1,874.39 and 1,149.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.45 : 1,874.39 = 1,149.25 : x
2. Step 2: Convert to fraction form
   1,359.45/1,874.39 = 1,149.25/x
3. Step 3: Cross multiply
   1,359.45x = 1,874.39 × 1,149.25
4. Step 4: Simplify right side
   1,359.45x = 2,154,142.71
5. Step 5: Solve for x
   x = 2,154,142.71/1,359.45
6. Step 6: Final answer
   x = 1,584.57