Finding the Fourth Proportional to 2,636.42, 3,638.23 and 1,457.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.42 : 3,638.23 = 1,457.51 : x
2. Step 2: Convert to fraction form
   2,636.42/3,638.23 = 1,457.51/x
3. Step 3: Cross multiply
   2,636.42x = 3,638.23 × 1,457.51
4. Step 4: Simplify right side
   2,636.42x = 5,302,756.61
5. Step 5: Solve for x
   x = 5,302,756.61/2,636.42
6. Step 6: Final answer
   x = 2,011.35