Finding the Fourth Proportional to 2,105.07, 2,906.16 and 1,265.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.07 : 2,906.16 = 1,265.98 : x
2. Step 2: Convert to fraction form
   2,105.07/2,906.16 = 1,265.98/x
3. Step 3: Cross multiply
   2,105.07x = 2,906.16 × 1,265.98
4. Step 4: Simplify right side
   2,105.07x = 3,679,140.44
5. Step 5: Solve for x
   x = 3,679,140.44/2,105.07
6. Step 6: Final answer
   x = 1,747.75