Finding the Fourth Proportional to 3,189.10, 4,783.86 and 849.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,189.10 : 4,783.86 = 849.06 : x
2. Step 2: Convert to fraction form
   3,189.10/4,783.86 = 849.06/x
3. Step 3: Cross multiply
   3,189.10x = 4,783.86 × 849.06
4. Step 4: Simplify right side
   3,189.10x = 4,061,784.17
5. Step 5: Solve for x
   x = 4,061,784.17/3,189.10
6. Step 6: Final answer
   x = 1,273.65