Finding the Fourth Proportional to 1,302.18, 1,796.96 and 712.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,302.18 : 1,796.96 = 712.72 : x
2. Step 2: Convert to fraction form
   1,302.18/1,796.96 = 712.72/x
3. Step 3: Cross multiply
   1,302.18x = 1,796.96 × 712.72
4. Step 4: Simplify right side
   1,302.18x = 1,280,729.33
5. Step 5: Solve for x
   x = 1,280,729.33/1,302.18
6. Step 6: Final answer
   x = 983.53