Finding the Fourth Proportional to 2,636.53, 3,638.78 and 1,517.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.53 : 3,638.78 = 1,517.45 : x
2. Step 2: Convert to fraction form
   2,636.53/3,638.78 = 1,517.45/x
3. Step 3: Cross multiply
   2,636.53x = 3,638.78 × 1,517.45
4. Step 4: Simplify right side
   2,636.53x = 5,521,666.71
5. Step 5: Solve for x
   x = 5,521,666.71/2,636.53
6. Step 6: Final answer
   x = 2,094.29