Finding the Fourth Proportional to 2,192.70, 3,025.86 and 1,308.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.70 : 3,025.86 = 1,308.06 : x
2. Step 2: Convert to fraction form
   2,192.70/3,025.86 = 1,308.06/x
3. Step 3: Cross multiply
   2,192.70x = 3,025.86 × 1,308.06
4. Step 4: Simplify right side
   2,192.70x = 3,958,006.43
5. Step 5: Solve for x
   x = 3,958,006.43/2,192.70
6. Step 6: Final answer
   x = 1,805.08