Finding the Fourth Proportional to 1,508.17, 2,081.31 and 845.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.17 : 2,081.31 = 845.02 : x
2. Step 2: Convert to fraction form
   1,508.17/2,081.31 = 845.02/x
3. Step 3: Cross multiply
   1,508.17x = 2,081.31 × 845.02
4. Step 4: Simplify right side
   1,508.17x = 1,758,748.58
5. Step 5: Solve for x
   x = 1,758,748.58/1,508.17
6. Step 6: Final answer
   x = 1,166.15