Finding the Fourth Proportional to 2,636.51, 3,638.31 and 1,457.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.51 : 3,638.31 = 1,457.56 : x
2. Step 2: Convert to fraction form
   2,636.51/3,638.31 = 1,457.56/x
3. Step 3: Cross multiply
   2,636.51x = 3,638.31 × 1,457.56
4. Step 4: Simplify right side
   2,636.51x = 5,303,055.12
5. Step 5: Solve for x
   x = 5,303,055.12/2,636.51
6. Step 6: Final answer
   x = 2,011.39