Finding the Fourth Proportional to 1,158.60, 1,597.57 and 738.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.60 : 1,597.57 = 738.28 : x
2. Step 2: Convert to fraction form
   1,158.60/1,597.57 = 738.28/x
3. Step 3: Cross multiply
   1,158.60x = 1,597.57 × 738.28
4. Step 4: Simplify right side
   1,158.60x = 1,179,453.98
5. Step 5: Solve for x
   x = 1,179,453.98/1,158.60
6. Step 6: Final answer
   x = 1,018.00