Finding the Fourth Proportional to 1,626.82, 2,245.05 and 928.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,626.82 : 2,245.05 = 928.18 : x
2. Step 2: Convert to fraction form
   1,626.82/2,245.05 = 928.18/x
3. Step 3: Cross multiply
   1,626.82x = 2,245.05 × 928.18
4. Step 4: Simplify right side
   1,626.82x = 2,083,810.51
5. Step 5: Solve for x
   x = 2,083,810.51/1,626.82
6. Step 6: Final answer
   x = 1,280.91