Finding the Fourth Proportional to 1,308.05, 1,961.87 and 849.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.05 : 1,961.87 = 849.08 : x
2. Step 2: Convert to fraction form
   1,308.05/1,961.87 = 849.08/x
3. Step 3: Cross multiply
   1,308.05x = 1,961.87 × 849.08
4. Step 4: Simplify right side
   1,308.05x = 1,665,790.01
5. Step 5: Solve for x
   x = 1,665,790.01/1,308.05
6. Step 6: Final answer
   x = 1,273.49