Finding the Fourth Proportional to 2,471.76, 3,411.45 and 1,424.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,471.76 : 3,411.45 = 1,424.43 : x
2. Step 2: Convert to fraction form
   2,471.76/3,411.45 = 1,424.43/x
3. Step 3: Cross multiply
   2,471.76x = 3,411.45 × 1,424.43
4. Step 4: Simplify right side
   2,471.76x = 4,859,371.72
5. Step 5: Solve for x
   x = 4,859,371.72/2,471.76
6. Step 6: Final answer
   x = 1,965.96