Finding the Fourth Proportional to 2,071.56, 3,103.86 and 1,995

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.56 : 3,103.86 = 1,995 : x
2. Step 2: Convert to fraction form
   2,071.56/3,103.86 = 1,995/x
3. Step 3: Cross multiply
   2,071.56x = 3,103.86 × 1,995
4. Step 4: Simplify right side
   2,071.56x = 6,192,200.70
5. Step 5: Solve for x
   x = 6,192,200.70/2,071.56
6. Step 6: Final answer
   x = 2,989.15