Finding the Fourth Proportional to 2,038.69, 2,813.39 and 1,107.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,038.69 : 2,813.39 = 1,107.19 : x
2. Step 2: Convert to fraction form
   2,038.69/2,813.39 = 1,107.19/x
3. Step 3: Cross multiply
   2,038.69x = 2,813.39 × 1,107.19
4. Step 4: Simplify right side
   2,038.69x = 3,114,948.86
5. Step 5: Solve for x
   x = 3,114,948.86/2,038.69
6. Step 6: Final answer
   x = 1,527.92