Finding the Fourth Proportional to 1,508.48, 2,081.90 and 845.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.48 : 2,081.90 = 845.37 : x
2. Step 2: Convert to fraction form
   1,508.48/2,081.90 = 845.37/x
3. Step 3: Cross multiply
   1,508.48x = 2,081.90 × 845.37
4. Step 4: Simplify right side
   1,508.48x = 1,759,971.58
5. Step 5: Solve for x
   x = 1,759,971.58/1,508.48
6. Step 6: Final answer
   x = 1,166.72