Finding the Fourth Proportional to 2,928.83, 4,393.82 and 1,079.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,928.83 : 4,393.82 = 1,079.95 : x
2. Step 2: Convert to fraction form
   2,928.83/4,393.82 = 1,079.95/x
3. Step 3: Cross multiply
   2,928.83x = 4,393.82 × 1,079.95
4. Step 4: Simplify right side
   2,928.83x = 4,745,097.62
5. Step 5: Solve for x
   x = 4,745,097.62/2,928.83
6. Step 6: Final answer
   x = 1,620.14