Finding the Fourth Proportional to 1,096.56, 1,645.50 and 519.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.56 : 1,645.50 = 519.48 : x
2. Step 2: Convert to fraction form
   1,096.56/1,645.50 = 519.48/x
3. Step 3: Cross multiply
   1,096.56x = 1,645.50 × 519.48
4. Step 4: Simplify right side
   1,096.56x = 854,804.34
5. Step 5: Solve for x
   x = 854,804.34/1,096.56
6. Step 6: Final answer
   x = 779.53