Finding the Fourth Proportional to 2,071.06, 3,104.43 and 839.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.06 : 3,104.43 = 839.32 : x
2. Step 2: Convert to fraction form
   2,071.06/3,104.43 = 839.32/x
3. Step 3: Cross multiply
   2,071.06x = 3,104.43 × 839.32
4. Step 4: Simplify right side
   2,071.06x = 2,605,610.19
5. Step 5: Solve for x
   x = 2,605,610.19/2,071.06
6. Step 6: Final answer
   x = 1,258.10