Finding the Fourth Proportional to 3,851.76, 5,317.71 and 2,527.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,851.76 : 5,317.71 = 2,527.78 : x
2. Step 2: Convert to fraction form
   3,851.76/5,317.71 = 2,527.78/x
3. Step 3: Cross multiply
   3,851.76x = 5,317.71 × 2,527.78
4. Step 4: Simplify right side
   3,851.76x = 13,442,000.98
5. Step 5: Solve for x
   x = 13,442,000.98/3,851.76
6. Step 6: Final answer
   x = 3,489.83