Finding the Fourth Proportional to 1,508.42, 2,081.57 and 845.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.42 : 2,081.57 = 845.25 : x
2. Step 2: Convert to fraction form
   1,508.42/2,081.57 = 845.25/x
3. Step 3: Cross multiply
   1,508.42x = 2,081.57 × 845.25
4. Step 4: Simplify right side
   1,508.42x = 1,759,442.82
5. Step 5: Solve for x
   x = 1,759,442.82/1,508.42
6. Step 6: Final answer
   x = 1,166.42