Finding the Fourth Proportional to 1,458.38, 2,185.82 and 677.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.38 : 2,185.82 = 677.32 : x
2. Step 2: Convert to fraction form
   1,458.38/2,185.82 = 677.32/x
3. Step 3: Cross multiply
   1,458.38x = 2,185.82 × 677.32
4. Step 4: Simplify right side
   1,458.38x = 1,480,499.60
5. Step 5: Solve for x
   x = 1,480,499.60/1,458.38
6. Step 6: Final answer
   x = 1,015.17