Finding the Fourth Proportional to 2,099.38, 3,133.34 and 2,064.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.38 : 3,133.34 = 2,064.78 : x
2. Step 2: Convert to fraction form
   2,099.38/3,133.34 = 2,064.78/x
3. Step 3: Cross multiply
   2,099.38x = 3,133.34 × 2,064.78
4. Step 4: Simplify right side
   2,099.38x = 6,469,657.77
5. Step 5: Solve for x
   x = 6,469,657.77/2,099.38
6. Step 6: Final answer
   x = 3,081.70