Finding the Fourth Proportional to 2,884.59, 3,951.90 and 2,776.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,884.59 : 3,951.90 = 2,776.60 : x
2. Step 2: Convert to fraction form
   2,884.59/3,951.90 = 2,776.60/x
3. Step 3: Cross multiply
   2,884.59x = 3,951.90 × 2,776.60
4. Step 4: Simplify right side
   2,884.59x = 10,972,831.66
5. Step 5: Solve for x
   x = 10,972,831.66/2,884.59
6. Step 6: Final answer
   x = 3,803.96