Finding the Fourth Proportional to 2,040.87, 2,816.40 and 1,109.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.87 : 2,816.40 = 1,109.37 : x
2. Step 2: Convert to fraction form
   2,040.87/2,816.40 = 1,109.37/x
3. Step 3: Cross multiply
   2,040.87x = 2,816.40 × 1,109.37
4. Step 4: Simplify right side
   2,040.87x = 3,124,429.67
5. Step 5: Solve for x
   x = 3,124,429.67/2,040.87
6. Step 6: Final answer
   x = 1,530.93