Finding the Fourth Proportional to 2,003.72, 2,765.30 and 1,119.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.72 : 2,765.30 = 1,119.60 : x
2. Step 2: Convert to fraction form
   2,003.72/2,765.30 = 1,119.60/x
3. Step 3: Cross multiply
   2,003.72x = 2,765.30 × 1,119.60
4. Step 4: Simplify right side
   2,003.72x = 3,096,024.28
5. Step 5: Solve for x
   x = 3,096,024.28/2,003.72
6. Step 6: Final answer
   x = 1,545.14