Finding the Fourth Proportional to 1,301.64, 1,796.28 and 712.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.64 : 1,796.28 = 712.18 : x
2. Step 2: Convert to fraction form
   1,301.64/1,796.28 = 712.18/x
3. Step 3: Cross multiply
   1,301.64x = 1,796.28 × 712.18
4. Step 4: Simplify right side
   1,301.64x = 1,279,270.17
5. Step 5: Solve for x
   x = 1,279,270.17/1,301.64
6. Step 6: Final answer
   x = 982.82