Finding the Fourth Proportional to 1,273.56, 1,757.50 and 714.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.56 : 1,757.50 = 714.03 : x
2. Step 2: Convert to fraction form
   1,273.56/1,757.50 = 714.03/x
3. Step 3: Cross multiply
   1,273.56x = 1,757.50 × 714.03
4. Step 4: Simplify right side
   1,273.56x = 1,254,901.82
5. Step 5: Solve for x
   x = 1,254,901.82/1,273.56
6. Step 6: Final answer
   x = 985.35