Finding the Fourth Proportional to 2,860.92, 4,292.82 and 1,323

Step by Step Solution

1. Step 1: Write the proportion equation
   2,860.92 : 4,292.82 = 1,323 : x
2. Step 2: Convert to fraction form
   2,860.92/4,292.82 = 1,323/x
3. Step 3: Cross multiply
   2,860.92x = 4,292.82 × 1,323
4. Step 4: Simplify right side
   2,860.92x = 5,679,400.86
5. Step 5: Solve for x
   x = 5,679,400.86/2,860.92
6. Step 6: Final answer
   x = 1,985.17