Finding the Fourth Proportional to 3,671.56, 5,067.64 and 2,100.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,671.56 : 5,067.64 = 2,100.54 : x
2. Step 2: Convert to fraction form
   3,671.56/5,067.64 = 2,100.54/x
3. Step 3: Cross multiply
   3,671.56x = 5,067.64 × 2,100.54
4. Step 4: Simplify right side
   3,671.56x = 10,644,780.53
5. Step 5: Solve for x
   x = 10,644,780.53/3,671.56
6. Step 6: Final answer
   x = 2,899.25