Finding the Fourth Proportional to 2,004.20, 2,765.91 and 1,120.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.20 : 2,765.91 = 1,120.07 : x
2. Step 2: Convert to fraction form
   2,004.20/2,765.91 = 1,120.07/x
3. Step 3: Cross multiply
   2,004.20x = 2,765.91 × 1,120.07
4. Step 4: Simplify right side
   2,004.20x = 3,097,998.98
5. Step 5: Solve for x
   x = 3,097,998.98/2,004.20
6. Step 6: Final answer
   x = 1,545.76