Finding the Fourth Proportional to 1,301.69, 1,796.28 and 712.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.69 : 1,796.28 = 712.23 : x
2. Step 2: Convert to fraction form
   1,301.69/1,796.28 = 712.23/x
3. Step 3: Cross multiply
   1,301.69x = 1,796.28 × 712.23
4. Step 4: Simplify right side
   1,301.69x = 1,279,364.50
5. Step 5: Solve for x
   x = 1,279,364.50/1,301.69
6. Step 6: Final answer
   x = 982.85