Finding the Fourth Proportional to 1,682.56, 2,324.16 and 1,403.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.56 : 2,324.16 = 1,403.72 : x
2. Step 2: Convert to fraction form
   1,682.56/2,324.16 = 1,403.72/x
3. Step 3: Cross multiply
   1,682.56x = 2,324.16 × 1,403.72
4. Step 4: Simplify right side
   1,682.56x = 3,262,469.88
5. Step 5: Solve for x
   x = 3,262,469.88/1,682.56
6. Step 6: Final answer
   x = 1,938.99