Finding the Fourth Proportional to 2,636.62, 3,638.52 and 1,457.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.62 : 3,638.52 = 1,457.68 : x
2. Step 2: Convert to fraction form
   2,636.62/3,638.52 = 1,457.68/x
3. Step 3: Cross multiply
   2,636.62x = 3,638.52 × 1,457.68
4. Step 4: Simplify right side
   2,636.62x = 5,303,797.83
5. Step 5: Solve for x
   x = 5,303,797.83/2,636.62
6. Step 6: Final answer
   x = 2,011.59