Finding the Fourth Proportional to 2,019.33, 2,787.45 and 1,809.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.33 : 2,787.45 = 1,809.15 : x
2. Step 2: Convert to fraction form
   2,019.33/2,787.45 = 1,809.15/x
3. Step 3: Cross multiply
   2,019.33x = 2,787.45 × 1,809.15
4. Step 4: Simplify right side
   2,019.33x = 5,042,915.17
5. Step 5: Solve for x
   x = 5,042,915.17/2,019.33
6. Step 6: Final answer
   x = 2,497.32