Finding the Fourth Proportional to 1,196.57, 1,793.23 and 619.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.57 : 1,793.23 = 619.85 : x
2. Step 2: Convert to fraction form
   1,196.57/1,793.23 = 619.85/x
3. Step 3: Cross multiply
   1,196.57x = 1,793.23 × 619.85
4. Step 4: Simplify right side
   1,196.57x = 1,111,533.62
5. Step 5: Solve for x
   x = 1,111,533.62/1,196.57
6. Step 6: Final answer
   x = 928.93