Finding the Fourth Proportional to 2,003.39, 2,764.67 and 1,107.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.39 : 2,764.67 = 1,107.20 : x
2. Step 2: Convert to fraction form
   2,003.39/2,764.67 = 1,107.20/x
3. Step 3: Cross multiply
   2,003.39x = 2,764.67 × 1,107.20
4. Step 4: Simplify right side
   2,003.39x = 3,061,029.49
5. Step 5: Solve for x
   x = 3,061,029.49/2,003.39
6. Step 6: Final answer
   x = 1,527.92