Finding the Fourth Proportional to 2,823.84, 3,892.83 and 1,981.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,823.84 : 3,892.83 = 1,981.93 : x
2. Step 2: Convert to fraction form
   2,823.84/3,892.83 = 1,981.93/x
3. Step 3: Cross multiply
   2,823.84x = 3,892.83 × 1,981.93
4. Step 4: Simplify right side
   2,823.84x = 7,715,316.56
5. Step 5: Solve for x
   x = 7,715,316.56/2,823.84
6. Step 6: Final answer
   x = 2,732.21