Finding the Fourth Proportional to 2,471.68, 3,411.29 and 1,423.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,471.68 : 3,411.29 = 1,423.54 : x
2. Step 2: Convert to fraction form
   2,471.68/3,411.29 = 1,423.54/x
3. Step 3: Cross multiply
   2,471.68x = 3,411.29 × 1,423.54
4. Step 4: Simplify right side
   2,471.68x = 4,856,107.77
5. Step 5: Solve for x
   x = 4,856,107.77/2,471.68
6. Step 6: Final answer
   x = 1,964.70