Finding the Fourth Proportional to 2,928.49, 4,371.86 and 2,825.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,928.49 : 4,371.86 = 2,825.98 : x
2. Step 2: Convert to fraction form
   2,928.49/4,371.86 = 2,825.98/x
3. Step 3: Cross multiply
   2,928.49x = 4,371.86 × 2,825.98
4. Step 4: Simplify right side
   2,928.49x = 12,354,788.92
5. Step 5: Solve for x
   x = 12,354,788.92/2,928.49
6. Step 6: Final answer
   x = 4,218.83