Finding the Fourth Proportional to 1,506.05, 2,078.25 and 842.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,506.05 : 2,078.25 = 842.79 : x
2. Step 2: Convert to fraction form
   1,506.05/2,078.25 = 842.79/x
3. Step 3: Cross multiply
   1,506.05x = 2,078.25 × 842.79
4. Step 4: Simplify right side
   1,506.05x = 1,751,528.32
5. Step 5: Solve for x
   x = 1,751,528.32/1,506.05
6. Step 6: Final answer
   x = 1,163.00