Finding the Fourth Proportional to 1,158.71, 1,599.01 and 627.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.71 : 1,599.01 = 627.59 : x
2. Step 2: Convert to fraction form
   1,158.71/1,599.01 = 627.59/x
3. Step 3: Cross multiply
   1,158.71x = 1,599.01 × 627.59
4. Step 4: Simplify right side
   1,158.71x = 1,003,513.12
5. Step 5: Solve for x
   x = 1,003,513.12/1,158.71
6. Step 6: Final answer
   x = 866.06