Finding the Fourth Proportional to 1,301.92, 1,796.65 and 712.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.92 : 1,796.65 = 712.45 : x
2. Step 2: Convert to fraction form
   1,301.92/1,796.65 = 712.45/x
3. Step 3: Cross multiply
   1,301.92x = 1,796.65 × 712.45
4. Step 4: Simplify right side
   1,301.92x = 1,280,019.73
5. Step 5: Solve for x
   x = 1,280,019.73/1,301.92
6. Step 6: Final answer
   x = 983.18