Finding the Fourth Proportional to 2,976.89, 4,106.23 and 1,928.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.89 : 4,106.23 = 1,928.88 : x
2. Step 2: Convert to fraction form
   2,976.89/4,106.23 = 1,928.88/x
3. Step 3: Cross multiply
   2,976.89x = 4,106.23 × 1,928.88
4. Step 4: Simplify right side
   2,976.89x = 7,920,420.10
5. Step 5: Solve for x
   x = 7,920,420.10/2,976.89
6. Step 6: Final answer
   x = 2,660.64