Finding the Fourth Proportional to 1,301.60, 1,796.24 and 712.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.60 : 1,796.24 = 712.17 : x
2. Step 2: Convert to fraction form
   1,301.60/1,796.24 = 712.17/x
3. Step 3: Cross multiply
   1,301.60x = 1,796.24 × 712.17
4. Step 4: Simplify right side
   1,301.60x = 1,279,221.04
5. Step 5: Solve for x
   x = 1,279,221.04/1,301.60
6. Step 6: Final answer
   x = 982.81