Finding the Fourth Proportional to 2,162.67, 3,247.01 and 1,109.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.67 : 3,247.01 = 1,109.22 : x
2. Step 2: Convert to fraction form
   2,162.67/3,247.01 = 1,109.22/x
3. Step 3: Cross multiply
   2,162.67x = 3,247.01 × 1,109.22
4. Step 4: Simplify right side
   2,162.67x = 3,601,648.43
5. Step 5: Solve for x
   x = 3,601,648.43/2,162.67
6. Step 6: Final answer
   x = 1,665.37