Finding the Fourth Proportional to 800.56, 1,194.72 and 790.23

Step by Step Solution

1. Step 1: Write the proportion equation
   800.56 : 1,194.72 = 790.23 : x
2. Step 2: Convert to fraction form
   800.56/1,194.72 = 790.23/x
3. Step 3: Cross multiply
   800.56x = 1,194.72 × 790.23
4. Step 4: Simplify right side
   800.56x = 944,103.59
5. Step 5: Solve for x
   x = 944,103.59/800.56
6. Step 6: Final answer
   x = 1,179.31