Finding the Fourth Proportional to 3,196.22, 4,789.96 and 2,415.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.22 : 4,789.96 = 2,415.58 : x
2. Step 2: Convert to fraction form
   3,196.22/4,789.96 = 2,415.58/x
3. Step 3: Cross multiply
   3,196.22x = 4,789.96 × 2,415.58
4. Step 4: Simplify right side
   3,196.22x = 11,570,531.58
5. Step 5: Solve for x
   x = 11,570,531.58/3,196.22
6. Step 6: Final answer
   x = 3,620.07