Finding the Fourth Proportional to 2,899.49, 4,367.47 and 2,861.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,899.49 : 4,367.47 = 2,861.22 : x
2. Step 2: Convert to fraction form
   2,899.49/4,367.47 = 2,861.22/x
3. Step 3: Cross multiply
   2,899.49x = 4,367.47 × 2,861.22
4. Step 4: Simplify right side
   2,899.49x = 12,496,278.21
5. Step 5: Solve for x
   x = 12,496,278.21/2,899.49
6. Step 6: Final answer
   x = 4,309.82