Finding the Fourth Proportional to 2,040.75, 2,816.28 and 1,109.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.75 : 2,816.28 = 1,109.25 : x
2. Step 2: Convert to fraction form
   2,040.75/2,816.28 = 1,109.25/x
3. Step 3: Cross multiply
   2,040.75x = 2,816.28 × 1,109.25
4. Step 4: Simplify right side
   2,040.75x = 3,123,958.59
5. Step 5: Solve for x
   x = 3,123,958.59/2,040.75
6. Step 6: Final answer
   x = 1,530.79