Finding the Fourth Proportional to 2,096.98, 3,143.47 and 985.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.98 : 3,143.47 = 985.30 : x
2. Step 2: Convert to fraction form
   2,096.98/3,143.47 = 985.30/x
3. Step 3: Cross multiply
   2,096.98x = 3,143.47 × 985.30
4. Step 4: Simplify right side
   2,096.98x = 3,097,260.99
5. Step 5: Solve for x
   x = 3,097,260.99/2,096.98
6. Step 6: Final answer
   x = 1,477.01