Finding the Fourth Proportional to 1,301.92, 1,796.70 and 712.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.92 : 1,796.70 = 712.48 : x
2. Step 2: Convert to fraction form
   1,301.92/1,796.70 = 712.48/x
3. Step 3: Cross multiply
   1,301.92x = 1,796.70 × 712.48
4. Step 4: Simplify right side
   1,301.92x = 1,280,112.82
5. Step 5: Solve for x
   x = 1,280,112.82/1,301.92
6. Step 6: Final answer
   x = 983.25