Finding the Fourth Proportional to 2,047.31, 2,825.15 and 1,208.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.31 : 2,825.15 = 1,208.05 : x
2. Step 2: Convert to fraction form
   2,047.31/2,825.15 = 1,208.05/x
3. Step 3: Cross multiply
   2,047.31x = 2,825.15 × 1,208.05
4. Step 4: Simplify right side
   2,047.31x = 3,412,922.46
5. Step 5: Solve for x
   x = 3,412,922.46/2,047.31
6. Step 6: Final answer
   x = 1,667.03