Finding the Fourth Proportional to 2,945.76, 4,418.46 and 1,214.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.76 : 4,418.46 = 1,214.34 : x
2. Step 2: Convert to fraction form
   2,945.76/4,418.46 = 1,214.34/x
3. Step 3: Cross multiply
   2,945.76x = 4,418.46 × 1,214.34
4. Step 4: Simplify right side
   2,945.76x = 5,365,512.72
5. Step 5: Solve for x
   x = 5,365,512.72/2,945.76
6. Step 6: Final answer
   x = 1,821.44