Finding the Fourth Proportional to 7,015.91, 10,523.83 and 2,018.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,015.91 : 10,523.83 = 2,018.40 : x
2. Step 2: Convert to fraction form
   7,015.91/10,523.83 = 2,018.40/x
3. Step 3: Cross multiply
   7,015.91x = 10,523.83 × 2,018.40
4. Step 4: Simplify right side
   7,015.91x = 21,241,339.72
5. Step 5: Solve for x
   x = 21,241,339.72/7,015.91
6. Step 6: Final answer
   x = 3,027.59