Finding the Fourth Proportional to 2,148.94, 3,225.43 and 1,109.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.94 : 3,225.43 = 1,109.68 : x
2. Step 2: Convert to fraction form
   2,148.94/3,225.43 = 1,109.68/x
3. Step 3: Cross multiply
   2,148.94x = 3,225.43 × 1,109.68
4. Step 4: Simplify right side
   2,148.94x = 3,579,195.16
5. Step 5: Solve for x
   x = 3,579,195.16/2,148.94
6. Step 6: Final answer
   x = 1,665.56