Finding the Fourth Proportional to 2,459.69, 3,689.50 and 998.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,459.69 : 3,689.50 = 998.49 : x
2. Step 2: Convert to fraction form
   2,459.69/3,689.50 = 998.49/x
3. Step 3: Cross multiply
   2,459.69x = 3,689.50 × 998.49
4. Step 4: Simplify right side
   2,459.69x = 3,683,928.86
5. Step 5: Solve for x
   x = 3,683,928.86/2,459.69
6. Step 6: Final answer
   x = 1,497.72