Finding the Fourth Proportional to 2,308.88, 3,461.34 and 847.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.88 : 3,461.34 = 847.28 : x
2. Step 2: Convert to fraction form
   2,308.88/3,461.34 = 847.28/x
3. Step 3: Cross multiply
   2,308.88x = 3,461.34 × 847.28
4. Step 4: Simplify right side
   2,308.88x = 2,932,724.16
5. Step 5: Solve for x
   x = 2,932,724.16/2,308.88
6. Step 6: Final answer
   x = 1,270.19