Finding the Fourth Proportional to 3,487.67, 5,231.69 and 1,022.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,487.67 : 5,231.69 = 1,022.69 : x
2. Step 2: Convert to fraction form
   3,487.67/5,231.69 = 1,022.69/x
3. Step 3: Cross multiply
   3,487.67x = 5,231.69 × 1,022.69
4. Step 4: Simplify right side
   3,487.67x = 5,350,408.85
5. Step 5: Solve for x
   x = 5,350,408.85/3,487.67
6. Step 6: Final answer
   x = 1,534.09