Finding the Fourth Proportional to 1,096.03, 1,644.86 and 519.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.03 : 1,644.86 = 519.31 : x
2. Step 2: Convert to fraction form
   1,096.03/1,644.86 = 519.31/x
3. Step 3: Cross multiply
   1,096.03x = 1,644.86 × 519.31
4. Step 4: Simplify right side
   1,096.03x = 854,192.25
5. Step 5: Solve for x
   x = 854,192.25/1,096.03
6. Step 6: Final answer
   x = 779.35