Finding the Fourth Proportional to 2,636.42, 3,638.25 and 1,457.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.42 : 3,638.25 = 1,457.49 : x
2. Step 2: Convert to fraction form
   2,636.42/3,638.25 = 1,457.49/x
3. Step 3: Cross multiply
   2,636.42x = 3,638.25 × 1,457.49
4. Step 4: Simplify right side
   2,636.42x = 5,302,704.81
5. Step 5: Solve for x
   x = 5,302,704.81/2,636.42
6. Step 6: Final answer
   x = 2,011.33