Finding the Fourth Proportional to 1,264.73, 1,745.81 and 1,086.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,264.73 : 1,745.81 = 1,086.98 : x
2. Step 2: Convert to fraction form
   1,264.73/1,745.81 = 1,086.98/x
3. Step 3: Cross multiply
   1,264.73x = 1,745.81 × 1,086.98
4. Step 4: Simplify right side
   1,264.73x = 1,897,659.48
5. Step 5: Solve for x
   x = 1,897,659.48/1,264.73
6. Step 6: Final answer
   x = 1,500.44