Finding the Fourth Proportional to 2,636.54, 3,638.48 and 1,457.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.54 : 3,638.48 = 1,457.69 : x
2. Step 2: Convert to fraction form
   2,636.54/3,638.48 = 1,457.69/x
3. Step 3: Cross multiply
   2,636.54x = 3,638.48 × 1,457.69
4. Step 4: Simplify right side
   2,636.54x = 5,303,750.43
5. Step 5: Solve for x
   x = 5,303,750.43/2,636.54
6. Step 6: Final answer
   x = 2,011.64