Finding the Fourth Proportional to 2,018.89, 2,784.40 and 1,423.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.89 : 2,784.40 = 1,423.37 : x
2. Step 2: Convert to fraction form
   2,018.89/2,784.40 = 1,423.37/x
3. Step 3: Cross multiply
   2,018.89x = 2,784.40 × 1,423.37
4. Step 4: Simplify right side
   2,018.89x = 3,963,213.95
5. Step 5: Solve for x
   x = 3,963,213.95/2,018.89
6. Step 6: Final answer
   x = 1,963.07