Finding the Fourth Proportional to 1,928.56, 2,660.46 and 1,265.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928.56 : 2,660.46 = 1,265.62 : x
2. Step 2: Convert to fraction form
   1,928.56/2,660.46 = 1,265.62/x
3. Step 3: Cross multiply
   1,928.56x = 2,660.46 × 1,265.62
4. Step 4: Simplify right side
   1,928.56x = 3,367,131.39
5. Step 5: Solve for x
   x = 3,367,131.39/1,928.56
6. Step 6: Final answer
   x = 1,745.93