Finding the Fourth Proportional to 2,620.64, 3,932.31 and 1,450.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.64 : 3,932.31 = 1,450.43 : x
2. Step 2: Convert to fraction form
   2,620.64/3,932.31 = 1,450.43/x
3. Step 3: Cross multiply
   2,620.64x = 3,932.31 × 1,450.43
4. Step 4: Simplify right side
   2,620.64x = 5,703,520.73
5. Step 5: Solve for x
   x = 5,703,520.73/2,620.64
6. Step 6: Final answer
   x = 2,176.39