Finding the Fourth Proportional to 2,212.58, 3,314 and 1,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.58 : 3,314 = 1,478.72 : x
2. Step 2: Convert to fraction form
   2,212.58/3,314 = 1,478.72/x
3. Step 3: Cross multiply
   2,212.58x = 3,314 × 1,478.72
4. Step 4: Simplify right side
   2,212.58x = 4,900,478.08
5. Step 5: Solve for x
   x = 4,900,478.08/2,212.58
6. Step 6: Final answer
   x = 2,214.83