Finding the Fourth Proportional to 2,730.45, 3,766.59 and 2,066.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.45 : 3,766.59 = 2,066.15 : x
2. Step 2: Convert to fraction form
   2,730.45/3,766.59 = 2,066.15/x
3. Step 3: Cross multiply
   2,730.45x = 3,766.59 × 2,066.15
4. Step 4: Simplify right side
   2,730.45x = 7,782,319.96
5. Step 5: Solve for x
   x = 7,782,319.96/2,730.45
6. Step 6: Final answer
   x = 2,850.20