Finding the Fourth Proportional to 1,984.89, 2,738.82 and 1,687.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.89 : 2,738.82 = 1,687.35 : x
2. Step 2: Convert to fraction form
   1,984.89/2,738.82 = 1,687.35/x
3. Step 3: Cross multiply
   1,984.89x = 2,738.82 × 1,687.35
4. Step 4: Simplify right side
   1,984.89x = 4,621,347.93
5. Step 5: Solve for x
   x = 4,621,347.93/1,984.89
6. Step 6: Final answer
   x = 2,328.26