Finding the Fourth Proportional to 3,074.72, 4,612.23 and 883.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,074.72 : 4,612.23 = 883.78 : x
2. Step 2: Convert to fraction form
   3,074.72/4,612.23 = 883.78/x
3. Step 3: Cross multiply
   3,074.72x = 4,612.23 × 883.78
4. Step 4: Simplify right side
   3,074.72x = 4,076,185.10
5. Step 5: Solve for x
   x = 4,076,185.10/3,074.72
6. Step 6: Final answer
   x = 1,325.71