Finding the Fourth Proportional to 2,079.75, 2,870.06 and 1,148.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.75 : 2,870.06 = 1,148.25 : x
2. Step 2: Convert to fraction form
   2,079.75/2,870.06 = 1,148.25/x
3. Step 3: Cross multiply
   2,079.75x = 2,870.06 × 1,148.25
4. Step 4: Simplify right side
   2,079.75x = 3,295,540.65
5. Step 5: Solve for x
   x = 3,295,540.65/2,079.75
6. Step 6: Final answer
   x = 1,584.59