Finding the Fourth Proportional to 2,678.04, 4,018.58 and 1,445.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.04 : 4,018.58 = 1,445.42 : x
2. Step 2: Convert to fraction form
   2,678.04/4,018.58 = 1,445.42/x
3. Step 3: Cross multiply
   2,678.04x = 4,018.58 × 1,445.42
4. Step 4: Simplify right side
   2,678.04x = 5,808,535.90
5. Step 5: Solve for x
   x = 5,808,535.90/2,678.04
6. Step 6: Final answer
   x = 2,168.95