Finding the Fourth Proportional to 871.86, 1,200.69 and 793.98

Step by Step Solution

1. Step 1: Write the proportion equation
   871.86 : 1,200.69 = 793.98 : x
2. Step 2: Convert to fraction form
   871.86/1,200.69 = 793.98/x
3. Step 3: Cross multiply
   871.86x = 1,200.69 × 793.98
4. Step 4: Simplify right side
   871.86x = 953,323.85
5. Step 5: Solve for x
   x = 953,323.85/871.86
6. Step 6: Final answer
   x = 1,093.44