Finding the Fourth Proportional to 2,674.94, 3,994.64 and 2,645.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,674.94 : 3,994.64 = 2,645.98 : x
2. Step 2: Convert to fraction form
   2,674.94/3,994.64 = 2,645.98/x
3. Step 3: Cross multiply
   2,674.94x = 3,994.64 × 2,645.98
4. Step 4: Simplify right side
   2,674.94x = 10,569,724.32
5. Step 5: Solve for x
   x = 10,569,724.32/2,674.94
6. Step 6: Final answer
   x = 3,951.39