Finding the Fourth Proportional to 3,783.12, 5,674.56 and 1,047.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,783.12 : 5,674.56 = 1,047.12 : x
2. Step 2: Convert to fraction form
   3,783.12/5,674.56 = 1,047.12/x
3. Step 3: Cross multiply
   3,783.12x = 5,674.56 × 1,047.12
4. Step 4: Simplify right side
   3,783.12x = 5,941,945.27
5. Step 5: Solve for x
   x = 5,941,945.27/3,783.12
6. Step 6: Final answer
   x = 1,570.65