Finding the Fourth Proportional to 1,301.72, 1,796.28 and 712.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.72 : 1,796.28 = 712.13 : x
2. Step 2: Convert to fraction form
   1,301.72/1,796.28 = 712.13/x
3. Step 3: Cross multiply
   1,301.72x = 1,796.28 × 712.13
4. Step 4: Simplify right side
   1,301.72x = 1,279,184.88
5. Step 5: Solve for x
   x = 1,279,184.88/1,301.72
6. Step 6: Final answer
   x = 982.69