Finding the Fourth Proportional to 2,150, 3,222.96 and 1,109.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150 : 3,222.96 = 1,109.60 : x
2. Step 2: Convert to fraction form
   2,150/3,222.96 = 1,109.60/x
3. Step 3: Cross multiply
   2,150x = 3,222.96 × 1,109.60
4. Step 4: Simplify right side
   2,150x = 3,576,196.42
5. Step 5: Solve for x
   x = 3,576,196.42/2,150
6. Step 6: Final answer
   x = 1,663.35