Finding the Fourth Proportional to 1,508.76, 2,081.80 and 845.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.76 : 2,081.80 = 845.62 : x
2. Step 2: Convert to fraction form
   1,508.76/2,081.80 = 845.62/x
3. Step 3: Cross multiply
   1,508.76x = 2,081.80 × 845.62
4. Step 4: Simplify right side
   1,508.76x = 1,760,411.72
5. Step 5: Solve for x
   x = 1,760,411.72/1,508.76
6. Step 6: Final answer
   x = 1,166.79