Finding the Fourth Proportional to 2,215.35, 3,057.09 and 1,417.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.35 : 3,057.09 = 1,417.55 : x
2. Step 2: Convert to fraction form
   2,215.35/3,057.09 = 1,417.55/x
3. Step 3: Cross multiply
   2,215.35x = 3,057.09 × 1,417.55
4. Step 4: Simplify right side
   2,215.35x = 4,333,582.50
5. Step 5: Solve for x
   x = 4,333,582.50/2,215.35
6. Step 6: Final answer
   x = 1,956.16