Finding the Fourth Proportional to 2,040.89, 2,816.42 and 1,109.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.89 : 2,816.42 = 1,109.39 : x
2. Step 2: Convert to fraction form
   2,040.89/2,816.42 = 1,109.39/x
3. Step 3: Cross multiply
   2,040.89x = 2,816.42 × 1,109.39
4. Step 4: Simplify right side
   2,040.89x = 3,124,502.64
5. Step 5: Solve for x
   x = 3,124,502.64/2,040.89
6. Step 6: Final answer
   x = 1,530.95