Finding the Fourth Proportional to 2,861.82, 3,947.58 and 1,800.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,861.82 : 3,947.58 = 1,800.18 : x
2. Step 2: Convert to fraction form
   2,861.82/3,947.58 = 1,800.18/x
3. Step 3: Cross multiply
   2,861.82x = 3,947.58 × 1,800.18
4. Step 4: Simplify right side
   2,861.82x = 7,106,354.56
5. Step 5: Solve for x
   x = 7,106,354.56/2,861.82
6. Step 6: Final answer
   x = 2,483.16