Finding the Fourth Proportional to 1,271.34, 1,754.22 and 711.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271.34 : 1,754.22 = 711.83 : x
2. Step 2: Convert to fraction form
   1,271.34/1,754.22 = 711.83/x
3. Step 3: Cross multiply
   1,271.34x = 1,754.22 × 711.83
4. Step 4: Simplify right side
   1,271.34x = 1,248,697.65
5. Step 5: Solve for x
   x = 1,248,697.65/1,271.34
6. Step 6: Final answer
   x = 982.19