Finding the Fourth Proportional to 3,175.86, 4,755.59 and 2,191.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,175.86 : 4,755.59 = 2,191.71 : x
2. Step 2: Convert to fraction form
   3,175.86/4,755.59 = 2,191.71/x
3. Step 3: Cross multiply
   3,175.86x = 4,755.59 × 2,191.71
4. Step 4: Simplify right side
   3,175.86x = 10,422,863.20
5. Step 5: Solve for x
   x = 10,422,863.20/3,175.86
6. Step 6: Final answer
   x = 3,281.90