Finding the Fourth Proportional to 3,196.17, 4,795.31 and 1,636.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.17 : 4,795.31 = 1,636.58 : x
2. Step 2: Convert to fraction form
   3,196.17/4,795.31 = 1,636.58/x
3. Step 3: Cross multiply
   3,196.17x = 4,795.31 × 1,636.58
4. Step 4: Simplify right side
   3,196.17x = 7,847,924.52
5. Step 5: Solve for x
   x = 7,847,924.52/3,196.17
6. Step 6: Final answer
   x = 2,455.42