Finding the Fourth Proportional to 8,084.53, 12,128.01 and 2,890

Step by Step Solution

1. Step 1: Write the proportion equation
   8,084.53 : 12,128.01 = 2,890 : x
2. Step 2: Convert to fraction form
   8,084.53/12,128.01 = 2,890/x
3. Step 3: Cross multiply
   8,084.53x = 12,128.01 × 2,890
4. Step 4: Simplify right side
   8,084.53x = 35,049,948.90
5. Step 5: Solve for x
   x = 35,049,948.90/8,084.53
6. Step 6: Final answer
   x = 4,335.43