Finding the Fourth Proportional to 2,821.41, 4,231.63 and 846.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,821.41 : 4,231.63 = 846.50 : x
2. Step 2: Convert to fraction form
   2,821.41/4,231.63 = 846.50/x
3. Step 3: Cross multiply
   2,821.41x = 4,231.63 × 846.50
4. Step 4: Simplify right side
   2,821.41x = 3,582,049.40
5. Step 5: Solve for x
   x = 3,582,049.40/2,821.41
6. Step 6: Final answer
   x = 1,269.60