Finding the Fourth Proportional to 3,185.33, 4,778.52 and 993.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.33 : 4,778.52 = 993.62 : x
2. Step 2: Convert to fraction form
   3,185.33/4,778.52 = 993.62/x
3. Step 3: Cross multiply
   3,185.33x = 4,778.52 × 993.62
4. Step 4: Simplify right side
   3,185.33x = 4,748,033.04
5. Step 5: Solve for x
   x = 4,748,033.04/3,185.33
6. Step 6: Final answer
   x = 1,490.59