Finding the Fourth Proportional to 3,238.49, 4,468.72 and 1,821.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,238.49 : 4,468.72 = 1,821.89 : x
2. Step 2: Convert to fraction form
   3,238.49/4,468.72 = 1,821.89/x
3. Step 3: Cross multiply
   3,238.49x = 4,468.72 × 1,821.89
4. Step 4: Simplify right side
   3,238.49x = 8,141,516.28
5. Step 5: Solve for x
   x = 8,141,516.28/3,238.49
6. Step 6: Final answer
   x = 2,513.99