Finding the Fourth Proportional to 1,396.96, 2,097.60 and 1,269.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.96 : 2,097.60 = 1,269.52 : x
2. Step 2: Convert to fraction form
   1,396.96/2,097.60 = 1,269.52/x
3. Step 3: Cross multiply
   1,396.96x = 2,097.60 × 1,269.52
4. Step 4: Simplify right side
   1,396.96x = 2,662,945.15
5. Step 5: Solve for x
   x = 2,662,945.15/1,396.96
6. Step 6: Final answer
   x = 1,906.24