Finding the Fourth Proportional to 2,106.23, 3,160.48 and 1,067.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.23 : 3,160.48 = 1,067.40 : x
2. Step 2: Convert to fraction form
   2,106.23/3,160.48 = 1,067.40/x
3. Step 3: Cross multiply
   2,106.23x = 3,160.48 × 1,067.40
4. Step 4: Simplify right side
   2,106.23x = 3,373,491.02
5. Step 5: Solve for x
   x = 3,373,491.02/2,106.23
6. Step 6: Final answer
   x = 1,601.68