Finding the Fourth Proportional to 2,040.65, 2,816.13 and 1,109.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.65 : 2,816.13 = 1,109.17 : x
2. Step 2: Convert to fraction form
   2,040.65/2,816.13 = 1,109.17/x
3. Step 3: Cross multiply
   2,040.65x = 2,816.13 × 1,109.17
4. Step 4: Simplify right side
   2,040.65x = 3,123,561.37
5. Step 5: Solve for x
   x = 3,123,561.37/2,040.65
6. Step 6: Final answer
   x = 1,530.67