Finding the Fourth Proportional to 2,015.16, 2,781.05 and 1,131.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.16 : 2,781.05 = 1,131.02 : x
2. Step 2: Convert to fraction form
   2,015.16/2,781.05 = 1,131.02/x
3. Step 3: Cross multiply
   2,015.16x = 2,781.05 × 1,131.02
4. Step 4: Simplify right side
   2,015.16x = 3,145,423.17
5. Step 5: Solve for x
   x = 3,145,423.17/2,015.16
6. Step 6: Final answer
   x = 1,560.88