Finding the Fourth Proportional to 2,007.45, 3,008.61 and 1,083.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.45 : 3,008.61 = 1,083.38 : x
2. Step 2: Convert to fraction form
   2,007.45/3,008.61 = 1,083.38/x
3. Step 3: Cross multiply
   2,007.45x = 3,008.61 × 1,083.38
4. Step 4: Simplify right side
   2,007.45x = 3,259,452.86
5. Step 5: Solve for x
   x = 3,259,452.86/2,007.45
6. Step 6: Final answer
   x = 1,623.68