Finding the Fourth Proportional to 2,928.53, 4,392.53 and 1,079.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,928.53 : 4,392.53 = 1,079.91 : x
2. Step 2: Convert to fraction form
   2,928.53/4,392.53 = 1,079.91/x
3. Step 3: Cross multiply
   2,928.53x = 4,392.53 × 1,079.91
4. Step 4: Simplify right side
   2,928.53x = 4,743,523.37
5. Step 5: Solve for x
   x = 4,743,523.37/2,928.53
6. Step 6: Final answer
   x = 1,619.76