Finding the Fourth Proportional to 1,151.51, 1,589.06 and 627.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.51 : 1,589.06 = 627.53 : x
2. Step 2: Convert to fraction form
   1,151.51/1,589.06 = 627.53/x
3. Step 3: Cross multiply
   1,151.51x = 1,589.06 × 627.53
4. Step 4: Simplify right side
   1,151.51x = 997,171.74
5. Step 5: Solve for x
   x = 997,171.74/1,151.51
6. Step 6: Final answer
   x = 865.97