Finding the Fourth Proportional to 2,040.76, 2,816.24 and 1,109.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.76 : 2,816.24 = 1,109.28 : x
2. Step 2: Convert to fraction form
   2,040.76/2,816.24 = 1,109.28/x
3. Step 3: Cross multiply
   2,040.76x = 2,816.24 × 1,109.28
4. Step 4: Simplify right side
   2,040.76x = 3,123,998.71
5. Step 5: Solve for x
   x = 3,123,998.71/2,040.76
6. Step 6: Final answer
   x = 1,530.80