Finding the Fourth Proportional to 1,158.20, 1,598.48 and 738.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.20 : 1,598.48 = 738.42 : x
2. Step 2: Convert to fraction form
   1,158.20/1,598.48 = 738.42/x
3. Step 3: Cross multiply
   1,158.20x = 1,598.48 × 738.42
4. Step 4: Simplify right side
   1,158.20x = 1,180,345.91
5. Step 5: Solve for x
   x = 1,180,345.91/1,158.20
6. Step 6: Final answer
   x = 1,019.13