Finding the Fourth Proportional to 2,391.06, 3,300.12 and 1,731

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.06 : 3,300.12 = 1,731 : x
2. Step 2: Convert to fraction form
   2,391.06/3,300.12 = 1,731/x
3. Step 3: Cross multiply
   2,391.06x = 3,300.12 × 1,731
4. Step 4: Simplify right side
   2,391.06x = 5,712,507.72
5. Step 5: Solve for x
   x = 5,712,507.72/2,391.06
6. Step 6: Final answer
   x = 2,389.11