Finding the Fourth Proportional to 1,151.82, 1,589.55 and 627.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.82 : 1,589.55 = 627.87 : x
2. Step 2: Convert to fraction form
   1,151.82/1,589.55 = 627.87/x
3. Step 3: Cross multiply
   1,151.82x = 1,589.55 × 627.87
4. Step 4: Simplify right side
   1,151.82x = 998,030.76
5. Step 5: Solve for x
   x = 998,030.76/1,151.82
6. Step 6: Final answer
   x = 866.48