Finding the Fourth Proportional to 2,180.50, 3,269.72 and 792.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.50 : 3,269.72 = 792.86 : x
2. Step 2: Convert to fraction form
   2,180.50/3,269.72 = 792.86/x
3. Step 3: Cross multiply
   2,180.50x = 3,269.72 × 792.86
4. Step 4: Simplify right side
   2,180.50x = 2,592,430.20
5. Step 5: Solve for x
   x = 2,592,430.20/2,180.50
6. Step 6: Final answer
   x = 1,188.92