Finding the Fourth Proportional to 2,776.67, 3,831.72 and 1,517.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.67 : 3,831.72 = 1,517.72 : x
2. Step 2: Convert to fraction form
   2,776.67/3,831.72 = 1,517.72/x
3. Step 3: Cross multiply
   2,776.67x = 3,831.72 × 1,517.72
4. Step 4: Simplify right side
   2,776.67x = 5,815,458.92
5. Step 5: Solve for x
   x = 5,815,458.92/2,776.67
6. Step 6: Final answer
   x = 2,094.40