Finding the Fourth Proportional to 1,403.89, 2,105.83 and 1,096

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.89 : 2,105.83 = 1,096 : x
2. Step 2: Convert to fraction form
   1,403.89/2,105.83 = 1,096/x
3. Step 3: Cross multiply
   1,403.89x = 2,105.83 × 1,096
4. Step 4: Simplify right side
   1,403.89x = 2,307,984.20
5. Step 5: Solve for x
   x = 2,307,984.20/1,403.89
6. Step 6: Final answer
   x = 1,643.99