Finding the Fourth Proportional to 1,271.89, 1,754.62 and 747.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271.89 : 1,754.62 = 747.55 : x
2. Step 2: Convert to fraction form
   1,271.89/1,754.62 = 747.55/x
3. Step 3: Cross multiply
   1,271.89x = 1,754.62 × 747.55
4. Step 4: Simplify right side
   1,271.89x = 1,311,666.18
5. Step 5: Solve for x
   x = 1,311,666.18/1,271.89
6. Step 6: Final answer
   x = 1,031.27