Finding the Fourth Proportional to 3,589.48, 5,383.50 and 992.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,589.48 : 5,383.50 = 992.68 : x
2. Step 2: Convert to fraction form
   3,589.48/5,383.50 = 992.68/x
3. Step 3: Cross multiply
   3,589.48x = 5,383.50 × 992.68
4. Step 4: Simplify right side
   3,589.48x = 5,344,092.78
5. Step 5: Solve for x
   x = 5,344,092.78/3,589.48
6. Step 6: Final answer
   x = 1,488.82