Finding the Fourth Proportional to 2,225.88, 3,069.72 and 1,806.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.88 : 3,069.72 = 1,806.12 : x
2. Step 2: Convert to fraction form
   2,225.88/3,069.72 = 1,806.12/x
3. Step 3: Cross multiply
   2,225.88x = 3,069.72 × 1,806.12
4. Step 4: Simplify right side
   2,225.88x = 5,544,282.69
5. Step 5: Solve for x
   x = 5,544,282.69/2,225.88
6. Step 6: Final answer
   x = 2,490.83