Finding the Fourth Proportional to 3,196.63, 4,407.51 and 2,357.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.63 : 4,407.51 = 2,357.20 : x
2. Step 2: Convert to fraction form
   3,196.63/4,407.51 = 2,357.20/x
3. Step 3: Cross multiply
   3,196.63x = 4,407.51 × 2,357.20
4. Step 4: Simplify right side
   3,196.63x = 10,389,382.57
5. Step 5: Solve for x
   x = 10,389,382.57/3,196.63
6. Step 6: Final answer
   x = 3,250.10