Finding the Fourth Proportional to 2,083.40, 2,860.04 and 1,788.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.40 : 2,860.04 = 1,788.15 : x
2. Step 2: Convert to fraction form
   2,083.40/2,860.04 = 1,788.15/x
3. Step 3: Cross multiply
   2,083.40x = 2,860.04 × 1,788.15
4. Step 4: Simplify right side
   2,083.40x = 5,114,180.53
5. Step 5: Solve for x
   x = 5,114,180.53/2,083.40
6. Step 6: Final answer
   x = 2,454.73