Finding the Fourth Proportional to 2,316.22, 3,196.40 and 1,268.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.22 : 3,196.40 = 1,268.28 : x
2. Step 2: Convert to fraction form
   2,316.22/3,196.40 = 1,268.28/x
3. Step 3: Cross multiply
   2,316.22x = 3,196.40 × 1,268.28
4. Step 4: Simplify right side
   2,316.22x = 4,053,923.85
5. Step 5: Solve for x
   x = 4,053,923.85/2,316.22
6. Step 6: Final answer
   x = 1,750.23