Finding the Fourth Proportional to 2,084.55, 2,874.51 and 1,685.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.55 : 2,874.51 = 1,685.82 : x
2. Step 2: Convert to fraction form
   2,084.55/2,874.51 = 1,685.82/x
3. Step 3: Cross multiply
   2,084.55x = 2,874.51 × 1,685.82
4. Step 4: Simplify right side
   2,084.55x = 4,845,906.45
5. Step 5: Solve for x
   x = 4,845,906.45/2,084.55
6. Step 6: Final answer
   x = 2,324.68