Finding the Fourth Proportional to 2,890.89, 4,335.53 and 2,066.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.89 : 4,335.53 = 2,066.72 : x
2. Step 2: Convert to fraction form
   2,890.89/4,335.53 = 2,066.72/x
3. Step 3: Cross multiply
   2,890.89x = 4,335.53 × 2,066.72
4. Step 4: Simplify right side
   2,890.89x = 8,960,294.55
5. Step 5: Solve for x
   x = 8,960,294.55/2,890.89
6. Step 6: Final answer
   x = 3,099.49