Finding the Fourth Proportional to 1,992.89, 2,991.14 and 1,019.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992.89 : 2,991.14 = 1,019.67 : x
2. Step 2: Convert to fraction form
   1,992.89/2,991.14 = 1,019.67/x
3. Step 3: Cross multiply
   1,992.89x = 2,991.14 × 1,019.67
4. Step 4: Simplify right side
   1,992.89x = 3,049,970.63
5. Step 5: Solve for x
   x = 3,049,970.63/1,992.89
6. Step 6: Final answer
   x = 1,530.43