Finding the Fourth Proportional to 2,178.52, 3,265.89 and 945.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.52 : 3,265.89 = 945.97 : x
2. Step 2: Convert to fraction form
   2,178.52/3,265.89 = 945.97/x
3. Step 3: Cross multiply
   2,178.52x = 3,265.89 × 945.97
4. Step 4: Simplify right side
   2,178.52x = 3,089,433.96
5. Step 5: Solve for x
   x = 3,089,433.96/2,178.52
6. Step 6: Final answer
   x = 1,418.13