Finding the Fourth Proportional to 2,636.16, 3,637.79 and 1,574.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.16 : 3,637.79 = 1,574.10 : x
2. Step 2: Convert to fraction form
   2,636.16/3,637.79 = 1,574.10/x
3. Step 3: Cross multiply
   2,636.16x = 3,637.79 × 1,574.10
4. Step 4: Simplify right side
   2,636.16x = 5,726,249.17
5. Step 5: Solve for x
   x = 5,726,249.17/2,636.16
6. Step 6: Final answer
   x = 2,172.19