Finding the Fourth Proportional to 2,995.98, 4,471.78 and 2,811.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,995.98 : 4,471.78 = 2,811.30 : x
2. Step 2: Convert to fraction form
   2,995.98/4,471.78 = 2,811.30/x
3. Step 3: Cross multiply
   2,995.98x = 4,471.78 × 2,811.30
4. Step 4: Simplify right side
   2,995.98x = 12,571,492.76
5. Step 5: Solve for x
   x = 12,571,492.76/2,995.98
6. Step 6: Final answer
   x = 4,196.13