Finding the Fourth Proportional to 2,040.80, 2,816.32 and 1,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.80 : 2,816.32 = 1,109.30 : x
2. Step 2: Convert to fraction form
   2,040.80/2,816.32 = 1,109.30/x
3. Step 3: Cross multiply
   2,040.80x = 2,816.32 × 1,109.30
4. Step 4: Simplify right side
   2,040.80x = 3,124,143.78
5. Step 5: Solve for x
   x = 3,124,143.78/2,040.80
6. Step 6: Final answer
   x = 1,530.84