Finding the Fourth Proportional to 2,636.64, 3,638.70 and 1,517.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.64 : 3,638.70 = 1,517.58 : x
2. Step 2: Convert to fraction form
   2,636.64/3,638.70 = 1,517.58/x
3. Step 3: Cross multiply
   2,636.64x = 3,638.70 × 1,517.58
4. Step 4: Simplify right side
   2,636.64x = 5,522,018.35
5. Step 5: Solve for x
   x = 5,522,018.35/2,636.64
6. Step 6: Final answer
   x = 2,094.34