Finding the Fourth Proportional to 3,748.09, 5,172.12 and 2,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,748.09 : 5,172.12 = 2,069.50 : x
2. Step 2: Convert to fraction form
   3,748.09/5,172.12 = 2,069.50/x
3. Step 3: Cross multiply
   3,748.09x = 5,172.12 × 2,069.50
4. Step 4: Simplify right side
   3,748.09x = 10,703,676.48
5. Step 5: Solve for x
   x = 10,703,676.48/3,748.09
6. Step 6: Final answer
   x = 2,855.77