Finding the Fourth Proportional to 2,471.81, 3,411.00 and 1,352.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,471.81 : 3,411.00 = 1,352.72 : x
2. Step 2: Convert to fraction form
   2,471.81/3,411.00 = 1,352.72/x
3. Step 3: Cross multiply
   2,471.81x = 3,411.00 × 1,352.72
4. Step 4: Simplify right side
   2,471.81x = 4,614,121.16
5. Step 5: Solve for x
   x = 4,614,121.16/2,471.81
6. Step 6: Final answer
   x = 1,866.70