Finding the Fourth Proportional to 1,150.12, 1,586.82 and 1,039.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.12 : 1,586.82 = 1,039.24 : x
2. Step 2: Convert to fraction form
   1,150.12/1,586.82 = 1,039.24/x
3. Step 3: Cross multiply
   1,150.12x = 1,586.82 × 1,039.24
4. Step 4: Simplify right side
   1,150.12x = 1,649,086.82
5. Step 5: Solve for x
   x = 1,649,086.82/1,150.12
6. Step 6: Final answer
   x = 1,433.84