Finding the Fourth Proportional to 2,307.96, 3,185.01 and 1,260.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.96 : 3,185.01 = 1,260.09 : x
2. Step 2: Convert to fraction form
   2,307.96/3,185.01 = 1,260.09/x
3. Step 3: Cross multiply
   2,307.96x = 3,185.01 × 1,260.09
4. Step 4: Simplify right side
   2,307.96x = 4,013,399.25
5. Step 5: Solve for x
   x = 4,013,399.25/2,307.96
6. Step 6: Final answer
   x = 1,738.94