Finding the Fourth Proportional to 2,815.86, 4,222.00 and 2,469.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,815.86 : 4,222.00 = 2,469.89 : x
2. Step 2: Convert to fraction form
   2,815.86/4,222.00 = 2,469.89/x
3. Step 3: Cross multiply
   2,815.86x = 4,222.00 × 2,469.89
4. Step 4: Simplify right side
   2,815.86x = 10,427,842.12
5. Step 5: Solve for x
   x = 10,427,842.12/2,815.86
6. Step 6: Final answer
   x = 3,703.25