Finding the Fourth Proportional to 2,296.31, 3,168.93 and 1,248.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,296.31 : 3,168.93 = 1,248.38 : x
2. Step 2: Convert to fraction form
   2,296.31/3,168.93 = 1,248.38/x
3. Step 3: Cross multiply
   2,296.31x = 3,168.93 × 1,248.38
4. Step 4: Simplify right side
   2,296.31x = 3,956,028.83
5. Step 5: Solve for x
   x = 3,956,028.83/2,296.31
6. Step 6: Final answer
   x = 1,722.78