Finding the Fourth Proportional to 3,672.42, 5,067.81 and 2,099.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.42 : 5,067.81 = 2,099.40 : x
2. Step 2: Convert to fraction form
   3,672.42/5,067.81 = 2,099.40/x
3. Step 3: Cross multiply
   3,672.42x = 5,067.81 × 2,099.40
4. Step 4: Simplify right side
   3,672.42x = 10,639,360.31
5. Step 5: Solve for x
   x = 10,639,360.31/3,672.42
6. Step 6: Final answer
   x = 2,897.10