Finding the Fourth Proportional to 2,178.33, 3,268.07 and 945.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.33 : 3,268.07 = 945.98 : x
2. Step 2: Convert to fraction form
   2,178.33/3,268.07 = 945.98/x
3. Step 3: Cross multiply
   2,178.33x = 3,268.07 × 945.98
4. Step 4: Simplify right side
   2,178.33x = 3,091,523.59
5. Step 5: Solve for x
   x = 3,091,523.59/2,178.33
6. Step 6: Final answer
   x = 1,419.22