Finding the Fourth Proportional to 3,671.96, 5,067.18 and 2,100.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,671.96 : 5,067.18 = 2,100.02 : x
2. Step 2: Convert to fraction form
   3,671.96/5,067.18 = 2,100.02/x
3. Step 3: Cross multiply
   3,671.96x = 5,067.18 × 2,100.02
4. Step 4: Simplify right side
   3,671.96x = 10,641,179.34
5. Step 5: Solve for x
   x = 10,641,179.34/3,671.96
6. Step 6: Final answer
   x = 2,897.96