Finding the Fourth Proportional to 1,508.22, 2,081.34 and 845.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.22 : 2,081.34 = 845.10 : x
2. Step 2: Convert to fraction form
   1,508.22/2,081.34 = 845.10/x
3. Step 3: Cross multiply
   1,508.22x = 2,081.34 × 845.10
4. Step 4: Simplify right side
   1,508.22x = 1,758,940.43
5. Step 5: Solve for x
   x = 1,758,940.43/1,508.22
6. Step 6: Final answer
   x = 1,166.24