Finding the Fourth Proportional to 2,389.45, 3,581.58 and 1,003.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.45 : 3,581.58 = 1,003.54 : x
2. Step 2: Convert to fraction form
   2,389.45/3,581.58 = 1,003.54/x
3. Step 3: Cross multiply
   2,389.45x = 3,581.58 × 1,003.54
4. Step 4: Simplify right side
   2,389.45x = 3,594,240.89
5. Step 5: Solve for x
   x = 3,594,240.89/2,389.45
6. Step 6: Final answer
   x = 1,504.22