Finding the Fourth Proportional to 1,081.16, 1,613.96 and 1,010.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.16 : 1,613.96 = 1,010.76 : x
2. Step 2: Convert to fraction form
   1,081.16/1,613.96 = 1,010.76/x
3. Step 3: Cross multiply
   1,081.16x = 1,613.96 × 1,010.76
4. Step 4: Simplify right side
   1,081.16x = 1,631,321.16
5. Step 5: Solve for x
   x = 1,631,321.16/1,081.16
6. Step 6: Final answer
   x = 1,508.87