Finding the Fourth Proportional to 2,770.64, 4,154.89 and 1,081.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,770.64 : 4,154.89 = 1,081.83 : x
2. Step 2: Convert to fraction form
   2,770.64/4,154.89 = 1,081.83/x
3. Step 3: Cross multiply
   2,770.64x = 4,154.89 × 1,081.83
4. Step 4: Simplify right side
   2,770.64x = 4,494,879.24
5. Step 5: Solve for x
   x = 4,494,879.24/2,770.64
6. Step 6: Final answer
   x = 1,622.33