Finding the Fourth Proportional to 2,471.82, 3,392.94 and 2,185.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,471.82 : 3,392.94 = 2,185.78 : x
2. Step 2: Convert to fraction form
   2,471.82/3,392.94 = 2,185.78/x
3. Step 3: Cross multiply
   2,471.82x = 3,392.94 × 2,185.78
4. Step 4: Simplify right side
   2,471.82x = 7,416,220.39
5. Step 5: Solve for x
   x = 7,416,220.39/2,471.82
6. Step 6: Final answer
   x = 3,000.31