Finding the Fourth Proportional to 1,271.57, 1,754.71 and 704.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271.57 : 1,754.71 = 704.43 : x
2. Step 2: Convert to fraction form
   1,271.57/1,754.71 = 704.43/x
3. Step 3: Cross multiply
   1,271.57x = 1,754.71 × 704.43
4. Step 4: Simplify right side
   1,271.57x = 1,236,070.37
5. Step 5: Solve for x
   x = 1,236,070.37/1,271.57
6. Step 6: Final answer
   x = 972.08