Finding the Fourth Proportional to 1,158.58, 1,598.84 and 627.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.58 : 1,598.84 = 627.47 : x
2. Step 2: Convert to fraction form
   1,158.58/1,598.84 = 627.47/x
3. Step 3: Cross multiply
   1,158.58x = 1,598.84 × 627.47
4. Step 4: Simplify right side
   1,158.58x = 1,003,216.14
5. Step 5: Solve for x
   x = 1,003,216.14/1,158.58
6. Step 6: Final answer
   x = 865.90