Finding the Fourth Proportional to 1,151.05, 1,588.45 and 627.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.05 : 1,588.45 = 627.08 : x
2. Step 2: Convert to fraction form
   1,151.05/1,588.45 = 627.08/x
3. Step 3: Cross multiply
   1,151.05x = 1,588.45 × 627.08
4. Step 4: Simplify right side
   1,151.05x = 996,085.23
5. Step 5: Solve for x
   x = 996,085.23/1,151.05
6. Step 6: Final answer
   x = 865.37