Finding the Fourth Proportional to 1,800.89, 2,698.38 and 1,106.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800.89 : 2,698.38 = 1,106.09 : x
2. Step 2: Convert to fraction form
   1,800.89/2,698.38 = 1,106.09/x
3. Step 3: Cross multiply
   1,800.89x = 2,698.38 × 1,106.09
4. Step 4: Simplify right side
   1,800.89x = 2,984,651.13
5. Step 5: Solve for x
   x = 2,984,651.13/1,800.89
6. Step 6: Final answer
   x = 1,657.32