Finding the Fourth Proportional to 796.56, 1,098.72 and 501.72

Step by Step Solution

1. Step 1: Write the proportion equation
   796.56 : 1,098.72 = 501.72 : x
2. Step 2: Convert to fraction form
   796.56/1,098.72 = 501.72/x
3. Step 3: Cross multiply
   796.56x = 1,098.72 × 501.72
4. Step 4: Simplify right side
   796.56x = 551,249.80
5. Step 5: Solve for x
   x = 551,249.80/796.56
6. Step 6: Final answer
   x = 692.04