Finding the Fourth Proportional to 2,989.89, 4,126.17 and 1,731

Step by Step Solution

1. Step 1: Write the proportion equation
   2,989.89 : 4,126.17 = 1,731 : x
2. Step 2: Convert to fraction form
   2,989.89/4,126.17 = 1,731/x
3. Step 3: Cross multiply
   2,989.89x = 4,126.17 × 1,731
4. Step 4: Simplify right side
   2,989.89x = 7,142,400.27
5. Step 5: Solve for x
   x = 7,142,400.27/2,989.89
6. Step 6: Final answer
   x = 2,388.85