Finding the Fourth Proportional to 3,675.89, 5,072.72 and 2,103.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,675.89 : 5,072.72 = 2,103.98 : x
2. Step 2: Convert to fraction form
   3,675.89/5,072.72 = 2,103.98/x
3. Step 3: Cross multiply
   3,675.89x = 5,072.72 × 2,103.98
4. Step 4: Simplify right side
   3,675.89x = 10,672,890.91
5. Step 5: Solve for x
   x = 10,672,890.91/3,675.89
6. Step 6: Final answer
   x = 2,903.48