Finding the Fourth Proportional to 2,018.71, 2,787.38 and 1,627.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.71 : 2,787.38 = 1,627.48 : x
2. Step 2: Convert to fraction form
   2,018.71/2,787.38 = 1,627.48/x
3. Step 3: Cross multiply
   2,018.71x = 2,787.38 × 1,627.48
4. Step 4: Simplify right side
   2,018.71x = 4,536,405.20
5. Step 5: Solve for x
   x = 4,536,405.20/2,018.71
6. Step 6: Final answer
   x = 2,247.18