Finding the Fourth Proportional to 2,068.92, 3,105 and 1,080.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.92 : 3,105 = 1,080.72 : x
2. Step 2: Convert to fraction form
   2,068.92/3,105 = 1,080.72/x
3. Step 3: Cross multiply
   2,068.92x = 3,105 × 1,080.72
4. Step 4: Simplify right side
   2,068.92x = 3,355,635.60
5. Step 5: Solve for x
   x = 3,355,635.60/2,068.92
6. Step 6: Final answer
   x = 1,621.93