Finding the Fourth Proportional to 3,847.98, 5,310.72 and 2,169.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,847.98 : 5,310.72 = 2,169.75 : x
2. Step 2: Convert to fraction form
   3,847.98/5,310.72 = 2,169.75/x
3. Step 3: Cross multiply
   3,847.98x = 5,310.72 × 2,169.75
4. Step 4: Simplify right side
   3,847.98x = 11,522,934.72
5. Step 5: Solve for x
   x = 11,522,934.72/3,847.98
6. Step 6: Final answer
   x = 2,994.54