Finding the Fourth Proportional to 1,806.80, 2,704.82 and 1,111.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.80 : 2,704.82 = 1,111.23 : x
2. Step 2: Convert to fraction form
   1,806.80/2,704.82 = 1,111.23/x
3. Step 3: Cross multiply
   1,806.80x = 2,704.82 × 1,111.23
4. Step 4: Simplify right side
   1,806.80x = 3,005,671.57
5. Step 5: Solve for x
   x = 3,005,671.57/1,806.80
6. Step 6: Final answer
   x = 1,663.54