Finding the Fourth Proportional to 1,271.50, 1,754.55 and 711.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271.50 : 1,754.55 = 711.94 : x
2. Step 2: Convert to fraction form
   1,271.50/1,754.55 = 711.94/x
3. Step 3: Cross multiply
   1,271.50x = 1,754.55 × 711.94
4. Step 4: Simplify right side
   1,271.50x = 1,249,134.33
5. Step 5: Solve for x
   x = 1,249,134.33/1,271.50
6. Step 6: Final answer
   x = 982.41