Finding the Fourth Proportional to 2,636.73, 3,638.73 and 1,457.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.73 : 3,638.73 = 1,457.87 : x
2. Step 2: Convert to fraction form
   2,636.73/3,638.73 = 1,457.87/x
3. Step 3: Cross multiply
   2,636.73x = 3,638.73 × 1,457.87
4. Step 4: Simplify right side
   2,636.73x = 5,304,795.31
5. Step 5: Solve for x
   x = 5,304,795.31/2,636.73
6. Step 6: Final answer
   x = 2,011.88