Finding the Fourth Proportional to 2,621.46, 3,934.98 and 1,928.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.46 : 3,934.98 = 1,928.94 : x
2. Step 2: Convert to fraction form
   2,621.46/3,934.98 = 1,928.94/x
3. Step 3: Cross multiply
   2,621.46x = 3,934.98 × 1,928.94
4. Step 4: Simplify right side
   2,621.46x = 7,590,340.32
5. Step 5: Solve for x
   x = 7,590,340.32/2,621.46
6. Step 6: Final answer
   x = 2,895.46