Finding the Fourth Proportional to 3,747.98, 5,172.15 and 2,069.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,747.98 : 5,172.15 = 2,069.39 : x
2. Step 2: Convert to fraction form
   3,747.98/5,172.15 = 2,069.39/x
3. Step 3: Cross multiply
   3,747.98x = 5,172.15 × 2,069.39
4. Step 4: Simplify right side
   3,747.98x = 10,703,169.63
5. Step 5: Solve for x
   x = 10,703,169.63/3,747.98
6. Step 6: Final answer
   x = 2,855.72