Finding the Fourth Proportional to 1,296.16, 1,788.72 and 736.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,296.16 : 1,788.72 = 736.60 : x
2. Step 2: Convert to fraction form
   1,296.16/1,788.72 = 736.60/x
3. Step 3: Cross multiply
   1,296.16x = 1,788.72 × 736.60
4. Step 4: Simplify right side
   1,296.16x = 1,317,571.15
5. Step 5: Solve for x
   x = 1,317,571.15/1,296.16
6. Step 6: Final answer
   x = 1,016.52