Finding the Fourth Proportional to 2,636.52, 3,638.46 and 1,457.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.52 : 3,638.46 = 1,457.61 : x
2. Step 2: Convert to fraction form
   2,636.52/3,638.46 = 1,457.61/x
3. Step 3: Cross multiply
   2,636.52x = 3,638.46 × 1,457.61
4. Step 4: Simplify right side
   2,636.52x = 5,303,455.68
5. Step 5: Solve for x
   x = 5,303,455.68/2,636.52
6. Step 6: Final answer
   x = 2,011.54