Finding the Fourth Proportional to 1,164.28, 1,606.06 and 738.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.28 : 1,606.06 = 738.12 : x
2. Step 2: Convert to fraction form
   1,164.28/1,606.06 = 738.12/x
3. Step 3: Cross multiply
   1,164.28x = 1,606.06 × 738.12
4. Step 4: Simplify right side
   1,164.28x = 1,185,471.95
5. Step 5: Solve for x
   x = 1,185,471.95/1,164.28
6. Step 6: Final answer
   x = 1,018.20