Finding the Fourth Proportional to 1,158.40, 1,598.58 and 627.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.40 : 1,598.58 = 627.27 : x
2. Step 2: Convert to fraction form
   1,158.40/1,598.58 = 627.27/x
3. Step 3: Cross multiply
   1,158.40x = 1,598.58 × 627.27
4. Step 4: Simplify right side
   1,158.40x = 1,002,741.28
5. Step 5: Solve for x
   x = 1,002,741.28/1,158.40
6. Step 6: Final answer
   x = 865.63