Finding the Fourth Proportional to 3,763.49, 5,628.83 and 2,199.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,763.49 : 5,628.83 = 2,199.78 : x
2. Step 2: Convert to fraction form
   3,763.49/5,628.83 = 2,199.78/x
3. Step 3: Cross multiply
   3,763.49x = 5,628.83 × 2,199.78
4. Step 4: Simplify right side
   3,763.49x = 12,382,196.23
5. Step 5: Solve for x
   x = 12,382,196.23/3,763.49
6. Step 6: Final answer
   x = 3,290.09