Finding the Fourth Proportional to 3,719.31, 5,578.81 and 1,527.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.31 : 5,578.81 = 1,527.98 : x
2. Step 2: Convert to fraction form
   3,719.31/5,578.81 = 1,527.98/x
3. Step 3: Cross multiply
   3,719.31x = 5,578.81 × 1,527.98
4. Step 4: Simplify right side
   3,719.31x = 8,524,310.10
5. Step 5: Solve for x
   x = 8,524,310.10/3,719.31
6. Step 6: Final answer
   x = 2,291.91