Finding the Fourth Proportional to 2,192.58, 3,026.25 and 1,309.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.58 : 3,026.25 = 1,309.05 : x
2. Step 2: Convert to fraction form
   2,192.58/3,026.25 = 1,309.05/x
3. Step 3: Cross multiply
   2,192.58x = 3,026.25 × 1,309.05
4. Step 4: Simplify right side
   2,192.58x = 3,961,512.56
5. Step 5: Solve for x
   x = 3,961,512.56/2,192.58
6. Step 6: Final answer
   x = 1,806.78