Finding the Fourth Proportional to 2,636.93, 3,639.15 and 1,457.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.93 : 3,639.15 = 1,457.98 : x
2. Step 2: Convert to fraction form
   2,636.93/3,639.15 = 1,457.98/x
3. Step 3: Cross multiply
   2,636.93x = 3,639.15 × 1,457.98
4. Step 4: Simplify right side
   2,636.93x = 5,305,798.82
5. Step 5: Solve for x
   x = 5,305,798.82/2,636.93
6. Step 6: Final answer
   x = 2,012.11