Finding the Fourth Proportional to 1,774.32, 2,662.38 and 679.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.32 : 2,662.38 = 679.38 : x
2. Step 2: Convert to fraction form
   1,774.32/2,662.38 = 679.38/x
3. Step 3: Cross multiply
   1,774.32x = 2,662.38 × 679.38
4. Step 4: Simplify right side
   1,774.32x = 1,808,767.72
5. Step 5: Solve for x
   x = 1,808,767.72/1,774.32
6. Step 6: Final answer
   x = 1,019.41