Finding the Fourth Proportional to 2,099.93, 3,148.83 and 1,222.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.93 : 3,148.83 = 1,222.71 : x
2. Step 2: Convert to fraction form
   2,099.93/3,148.83 = 1,222.71/x
3. Step 3: Cross multiply
   2,099.93x = 3,148.83 × 1,222.71
4. Step 4: Simplify right side
   2,099.93x = 3,850,105.93
5. Step 5: Solve for x
   x = 3,850,105.93/2,099.93
6. Step 6: Final answer
   x = 1,833.45