Finding the Fourth Proportional to 3,636.54, 5,012.55 and 2,457.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.54 : 5,012.55 = 2,457.18 : x
2. Step 2: Convert to fraction form
   3,636.54/5,012.55 = 2,457.18/x
3. Step 3: Cross multiply
   3,636.54x = 5,012.55 × 2,457.18
4. Step 4: Simplify right side
   3,636.54x = 12,316,737.61
5. Step 5: Solve for x
   x = 12,316,737.61/3,636.54
6. Step 6: Final answer
   x = 3,386.94