Finding the Fourth Proportional to 3,538.15, 4,885.82 and 2,212.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,538.15 : 4,885.82 = 2,212.18 : x
2. Step 2: Convert to fraction form
   3,538.15/4,885.82 = 2,212.18/x
3. Step 3: Cross multiply
   3,538.15x = 4,885.82 × 2,212.18
4. Step 4: Simplify right side
   3,538.15x = 10,808,298.31
5. Step 5: Solve for x
   x = 10,808,298.31/3,538.15
6. Step 6: Final answer
   x = 3,054.79