Finding the Fourth Proportional to 1,273.47, 1,757.27 and 713.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.47 : 1,757.27 = 713.81 : x
2. Step 2: Convert to fraction form
   1,273.47/1,757.27 = 713.81/x
3. Step 3: Cross multiply
   1,273.47x = 1,757.27 × 713.81
4. Step 4: Simplify right side
   1,273.47x = 1,254,361.07
5. Step 5: Solve for x
   x = 1,254,361.07/1,273.47
6. Step 6: Final answer
   x = 984.99