Finding the Fourth Proportional to 2,039.60, 2,814.62 and 1,108.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.60 : 2,814.62 = 1,108.10 : x
2. Step 2: Convert to fraction form
   2,039.60/2,814.62 = 1,108.10/x
3. Step 3: Cross multiply
   2,039.60x = 2,814.62 × 1,108.10
4. Step 4: Simplify right side
   2,039.60x = 3,118,866.35
5. Step 5: Solve for x
   x = 3,118,866.35/2,039.60
6. Step 6: Final answer
   x = 1,529.16