Finding the Fourth Proportional to 1,196.44, 1,793.58 and 579.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.44 : 1,793.58 = 579.76 : x
2. Step 2: Convert to fraction form
   1,196.44/1,793.58 = 579.76/x
3. Step 3: Cross multiply
   1,196.44x = 1,793.58 × 579.76
4. Step 4: Simplify right side
   1,196.44x = 1,039,845.94
5. Step 5: Solve for x
   x = 1,039,845.94/1,196.44
6. Step 6: Final answer
   x = 869.12