Finding the Fourth Proportional to 3,675.72, 5,072.56 and 2,103.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,675.72 : 5,072.56 = 2,103.84 : x
2. Step 2: Convert to fraction form
   3,675.72/5,072.56 = 2,103.84/x
3. Step 3: Cross multiply
   3,675.72x = 5,072.56 × 2,103.84
4. Step 4: Simplify right side
   3,675.72x = 10,671,854.63
5. Step 5: Solve for x
   x = 10,671,854.63/3,675.72
6. Step 6: Final answer
   x = 2,903.34