Finding the Fourth Proportional to 2,308.41, 3,185.62 and 1,260.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.41 : 3,185.62 = 1,260.47 : x
2. Step 2: Convert to fraction form
   2,308.41/3,185.62 = 1,260.47/x
3. Step 3: Cross multiply
   2,308.41x = 3,185.62 × 1,260.47
4. Step 4: Simplify right side
   2,308.41x = 4,015,383.25
5. Step 5: Solve for x
   x = 4,015,383.25/2,308.41
6. Step 6: Final answer
   x = 1,739.46