Finding the Fourth Proportional to 2,730.79, 3,765.72 and 2,231.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.79 : 3,765.72 = 2,231.83 : x
2. Step 2: Convert to fraction form
   2,730.79/3,765.72 = 2,231.83/x
3. Step 3: Cross multiply
   2,730.79x = 3,765.72 × 2,231.83
4. Step 4: Simplify right side
   2,730.79x = 8,404,446.87
5. Step 5: Solve for x
   x = 8,404,446.87/2,730.79
6. Step 6: Final answer
   x = 3,077.66