Finding the Fourth Proportional to 1,301.67, 1,796.38 and 712.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.67 : 1,796.38 = 712.22 : x
2. Step 2: Convert to fraction form
   1,301.67/1,796.38 = 712.22/x
3. Step 3: Cross multiply
   1,301.67x = 1,796.38 × 712.22
4. Step 4: Simplify right side
   1,301.67x = 1,279,417.76
5. Step 5: Solve for x
   x = 1,279,417.76/1,301.67
6. Step 6: Final answer
   x = 982.90