Finding the Fourth Proportional to 2,636.63, 3,638.60 and 1,457.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.63 : 3,638.60 = 1,457.71 : x
2. Step 2: Convert to fraction form
   2,636.63/3,638.60 = 1,457.71/x
3. Step 3: Cross multiply
   2,636.63x = 3,638.60 × 1,457.71
4. Step 4: Simplify right side
   2,636.63x = 5,303,998.12
5. Step 5: Solve for x
   x = 5,303,998.12/2,636.63
6. Step 6: Final answer
   x = 2,011.66