Finding the Fourth Proportional to 2,296.09, 3,168.64 and 1,248.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,296.09 : 3,168.64 = 1,248.15 : x
2. Step 2: Convert to fraction form
   2,296.09/3,168.64 = 1,248.15/x
3. Step 3: Cross multiply
   2,296.09x = 3,168.64 × 1,248.15
4. Step 4: Simplify right side
   2,296.09x = 3,954,938.02
5. Step 5: Solve for x
   x = 3,954,938.02/2,296.09
6. Step 6: Final answer
   x = 1,722.47