Finding the Fourth Proportional to 2,015.86, 3,022.82 and 1,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.86 : 3,022.82 = 1,322.50 : x
2. Step 2: Convert to fraction form
   2,015.86/3,022.82 = 1,322.50/x
3. Step 3: Cross multiply
   2,015.86x = 3,022.82 × 1,322.50
4. Step 4: Simplify right side
   2,015.86x = 3,997,679.45
5. Step 5: Solve for x
   x = 3,997,679.45/2,015.86
6. Step 6: Final answer
   x = 1,983.11