Finding the Fourth Proportional to 3,850.48, 5,314.17 and 2,172.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,850.48 : 5,314.17 = 2,172.25 : x
2. Step 2: Convert to fraction form
   3,850.48/5,314.17 = 2,172.25/x
3. Step 3: Cross multiply
   3,850.48x = 5,314.17 × 2,172.25
4. Step 4: Simplify right side
   3,850.48x = 11,543,705.78
5. Step 5: Solve for x
   x = 11,543,705.78/3,850.48
6. Step 6: Final answer
   x = 2,997.99