Finding the Fourth Proportional to 2,192.68, 3,289.62 and 1,095.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.68 : 3,289.62 = 1,095.72 : x
2. Step 2: Convert to fraction form
   2,192.68/3,289.62 = 1,095.72/x
3. Step 3: Cross multiply
   2,192.68x = 3,289.62 × 1,095.72
4. Step 4: Simplify right side
   2,192.68x = 3,604,502.43
5. Step 5: Solve for x
   x = 3,604,502.43/2,192.68
6. Step 6: Final answer
   x = 1,643.88