Finding the Fourth Proportional to 2,308.28, 3,461.72 and 847.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.28 : 3,461.72 = 847.08 : x
2. Step 2: Convert to fraction form
   2,308.28/3,461.72 = 847.08/x
3. Step 3: Cross multiply
   2,308.28x = 3,461.72 × 847.08
4. Step 4: Simplify right side
   2,308.28x = 2,932,353.78
5. Step 5: Solve for x
   x = 2,932,353.78/2,308.28
6. Step 6: Final answer
   x = 1,270.36