Finding the Fourth Proportional to 2,010.86, 3,017.57 and 1,087.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.86 : 3,017.57 = 1,087.05 : x
2. Step 2: Convert to fraction form
   2,010.86/3,017.57 = 1,087.05/x
3. Step 3: Cross multiply
   2,010.86x = 3,017.57 × 1,087.05
4. Step 4: Simplify right side
   2,010.86x = 3,280,244.03
5. Step 5: Solve for x
   x = 3,280,244.03/2,010.86
6. Step 6: Final answer
   x = 1,631.27