Finding the Fourth Proportional to 1,151.88, 1,589.59 and 627.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.88 : 1,589.59 = 627.94 : x
2. Step 2: Convert to fraction form
   1,151.88/1,589.59 = 627.94/x
3. Step 3: Cross multiply
   1,151.88x = 1,589.59 × 627.94
4. Step 4: Simplify right side
   1,151.88x = 998,167.14
5. Step 5: Solve for x
   x = 998,167.14/1,151.88
6. Step 6: Final answer
   x = 866.55