Finding the Fourth Proportional to 1,682.32, 2,322.64 and 1,308.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.32 : 2,322.64 = 1,308.64 : x
2. Step 2: Convert to fraction form
   1,682.32/2,322.64 = 1,308.64/x
3. Step 3: Cross multiply
   1,682.32x = 2,322.64 × 1,308.64
4. Step 4: Simplify right side
   1,682.32x = 3,039,499.61
5. Step 5: Solve for x
   x = 3,039,499.61/1,682.32
6. Step 6: Final answer
   x = 1,806.73