Finding the Fourth Proportional to 2,015.26, 2,781.12 and 1,131.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.26 : 2,781.12 = 1,131.10 : x
2. Step 2: Convert to fraction form
   2,015.26/2,781.12 = 1,131.10/x
3. Step 3: Cross multiply
   2,015.26x = 2,781.12 × 1,131.10
4. Step 4: Simplify right side
   2,015.26x = 3,145,724.83
5. Step 5: Solve for x
   x = 3,145,724.83/2,015.26
6. Step 6: Final answer
   x = 1,560.95