Finding the Fourth Proportional to 2,308.22, 3,185.35 and 1,260.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.22 : 3,185.35 = 1,260.29 : x
2. Step 2: Convert to fraction form
   2,308.22/3,185.35 = 1,260.29/x
3. Step 3: Cross multiply
   2,308.22x = 3,185.35 × 1,260.29
4. Step 4: Simplify right side
   2,308.22x = 4,014,449.66
5. Step 5: Solve for x
   x = 4,014,449.66/2,308.22
6. Step 6: Final answer
   x = 1,739.19