Finding the Fourth Proportional to 2,814.09, 4,219.92 and 1,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814.09 : 4,219.92 = 1,081.50 : x
2. Step 2: Convert to fraction form
   2,814.09/4,219.92 = 1,081.50/x
3. Step 3: Cross multiply
   2,814.09x = 4,219.92 × 1,081.50
4. Step 4: Simplify right side
   2,814.09x = 4,563,843.48
5. Step 5: Solve for x
   x = 4,563,843.48/2,814.09
6. Step 6: Final answer
   x = 1,621.78