Finding the Fourth Proportional to 3,073.09, 4,609.71 and 993.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,073.09 : 4,609.71 = 993.31 : x
2. Step 2: Convert to fraction form
   3,073.09/4,609.71 = 993.31/x
3. Step 3: Cross multiply
   3,073.09x = 4,609.71 × 993.31
4. Step 4: Simplify right side
   3,073.09x = 4,578,885.45
5. Step 5: Solve for x
   x = 4,578,885.45/3,073.09
6. Step 6: Final answer
   x = 1,489.99