Finding the Fourth Proportional to 2,065.89, 3,081.17 and 1,992.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.89 : 3,081.17 = 1,992.99 : x
2. Step 2: Convert to fraction form
   2,065.89/3,081.17 = 1,992.99/x
3. Step 3: Cross multiply
   2,065.89x = 3,081.17 × 1,992.99
4. Step 4: Simplify right side
   2,065.89x = 6,140,731.03
5. Step 5: Solve for x
   x = 6,140,731.03/2,065.89
6. Step 6: Final answer
   x = 2,972.44