Finding the Fourth Proportional to 1,067.70, 1,588.98 and 1,028.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.70 : 1,588.98 = 1,028.82 : x
2. Step 2: Convert to fraction form
   1,067.70/1,588.98 = 1,028.82/x
3. Step 3: Cross multiply
   1,067.70x = 1,588.98 × 1,028.82
4. Step 4: Simplify right side
   1,067.70x = 1,634,774.40
5. Step 5: Solve for x
   x = 1,634,774.40/1,067.70
6. Step 6: Final answer
   x = 1,531.12