Finding the Fourth Proportional to 1,040.42, 1,435.78 and 574.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.42 : 1,435.78 = 574.67 : x
2. Step 2: Convert to fraction form
   1,040.42/1,435.78 = 574.67/x
3. Step 3: Cross multiply
   1,040.42x = 1,435.78 × 574.67
4. Step 4: Simplify right side
   1,040.42x = 825,099.69
5. Step 5: Solve for x
   x = 825,099.69/1,040.42
6. Step 6: Final answer
   x = 793.04