Finding the Fourth Proportional to 2,081.02, 3,122.43 and 1,106.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.02 : 3,122.43 = 1,106.88 : x
2. Step 2: Convert to fraction form
   2,081.02/3,122.43 = 1,106.88/x
3. Step 3: Cross multiply
   2,081.02x = 3,122.43 × 1,106.88
4. Step 4: Simplify right side
   2,081.02x = 3,456,155.32
5. Step 5: Solve for x
   x = 3,456,155.32/2,081.02
6. Step 6: Final answer
   x = 1,660.80