Finding the Fourth Proportional to 1,273.05, 1,756.89 and 713.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.05 : 1,756.89 = 713.50 : x
2. Step 2: Convert to fraction form
   1,273.05/1,756.89 = 713.50/x
3. Step 3: Cross multiply
   1,273.05x = 1,756.89 × 713.50
4. Step 4: Simplify right side
   1,273.05x = 1,253,541.02
5. Step 5: Solve for x
   x = 1,253,541.02/1,273.05
6. Step 6: Final answer
   x = 984.68