Finding the Fourth Proportional to 2,890.76, 4,306.27 and 2,803.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.76 : 4,306.27 = 2,803.62 : x
2. Step 2: Convert to fraction form
   2,890.76/4,306.27 = 2,803.62/x
3. Step 3: Cross multiply
   2,890.76x = 4,306.27 × 2,803.62
4. Step 4: Simplify right side
   2,890.76x = 12,073,137.69
5. Step 5: Solve for x
   x = 12,073,137.69/2,890.76
6. Step 6: Final answer
   x = 4,176.45