Finding the Fourth Proportional to 1,096.72, 1,644.88 and 503.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.72 : 1,644.88 = 503.59 : x
2. Step 2: Convert to fraction form
   1,096.72/1,644.88 = 503.59/x
3. Step 3: Cross multiply
   1,096.72x = 1,644.88 × 503.59
4. Step 4: Simplify right side
   1,096.72x = 828,345.12
5. Step 5: Solve for x
   x = 828,345.12/1,096.72
6. Step 6: Final answer
   x = 755.29