Finding the Fourth Proportional to 2,018.14, 2,783.55 and 1,487.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.14 : 2,783.55 = 1,487.20 : x
2. Step 2: Convert to fraction form
   2,018.14/2,783.55 = 1,487.20/x
3. Step 3: Cross multiply
   2,018.14x = 2,783.55 × 1,487.20
4. Step 4: Simplify right side
   2,018.14x = 4,139,695.56
5. Step 5: Solve for x
   x = 4,139,695.56/2,018.14
6. Step 6: Final answer
   x = 2,051.24