Finding the Fourth Proportional to 1,508.42, 2,081.87 and 1,116.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.42 : 2,081.87 = 1,116.57 : x
2. Step 2: Convert to fraction form
   1,508.42/2,081.87 = 1,116.57/x
3. Step 3: Cross multiply
   1,508.42x = 2,081.87 × 1,116.57
4. Step 4: Simplify right side
   1,508.42x = 2,324,553.59
5. Step 5: Solve for x
   x = 2,324,553.59/1,508.42
6. Step 6: Final answer
   x = 1,541.05