Finding the Fourth Proportional to 3,895.04, 5,374.70 and 2,216.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.04 : 5,374.70 = 2,216.12 : x
2. Step 2: Convert to fraction form
   3,895.04/5,374.70 = 2,216.12/x
3. Step 3: Cross multiply
   3,895.04x = 5,374.70 × 2,216.12
4. Step 4: Simplify right side
   3,895.04x = 11,910,980.16
5. Step 5: Solve for x
   x = 11,910,980.16/3,895.04
6. Step 6: Final answer
   x = 3,057.99