Finding the Fourth Proportional to 2,989.69, 4,484.43 and 1,605.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,989.69 : 4,484.43 = 1,605.73 : x
2. Step 2: Convert to fraction form
   2,989.69/4,484.43 = 1,605.73/x
3. Step 3: Cross multiply
   2,989.69x = 4,484.43 × 1,605.73
4. Step 4: Simplify right side
   2,989.69x = 7,200,772.88
5. Step 5: Solve for x
   x = 7,200,772.88/2,989.69
6. Step 6: Final answer
   x = 2,408.54