Finding the Fourth Proportional to 3,168.78, 4,750.38 and 1,219.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,168.78 : 4,750.38 = 1,219.56 : x
2. Step 2: Convert to fraction form
   3,168.78/4,750.38 = 1,219.56/x
3. Step 3: Cross multiply
   3,168.78x = 4,750.38 × 1,219.56
4. Step 4: Simplify right side
   3,168.78x = 5,793,373.43
5. Step 5: Solve for x
   x = 5,793,373.43/3,168.78
6. Step 6: Final answer
   x = 1,828.27