Finding the Fourth Proportional to 2,192.17, 3,025.23 and 1,308.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.17 : 3,025.23 = 1,308.49 : x
2. Step 2: Convert to fraction form
   2,192.17/3,025.23 = 1,308.49/x
3. Step 3: Cross multiply
   2,192.17x = 3,025.23 × 1,308.49
4. Step 4: Simplify right side
   2,192.17x = 3,958,483.20
5. Step 5: Solve for x
   x = 3,958,483.20/2,192.17
6. Step 6: Final answer
   x = 1,805.74