Finding the Fourth Proportional to 2,003.97, 2,765.31 and 1,119.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.97 : 2,765.31 = 1,119.72 : x
2. Step 2: Convert to fraction form
   2,003.97/2,765.31 = 1,119.72/x
3. Step 3: Cross multiply
   2,003.97x = 2,765.31 × 1,119.72
4. Step 4: Simplify right side
   2,003.97x = 3,096,372.91
5. Step 5: Solve for x
   x = 3,096,372.91/2,003.97
6. Step 6: Final answer
   x = 1,545.12