Finding the Fourth Proportional to 1,196.61, 1,793.03 and 579.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.61 : 1,793.03 = 579.93 : x
2. Step 2: Convert to fraction form
   1,196.61/1,793.03 = 579.93/x
3. Step 3: Cross multiply
   1,196.61x = 1,793.03 × 579.93
4. Step 4: Simplify right side
   1,196.61x = 1,039,828.99
5. Step 5: Solve for x
   x = 1,039,828.99/1,196.61
6. Step 6: Final answer
   x = 868.98