Finding the Fourth Proportional to 1,842.89, 2,759.74 and 1,687.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,842.89 : 2,759.74 = 1,687.33 : x
2. Step 2: Convert to fraction form
   1,842.89/2,759.74 = 1,687.33/x
3. Step 3: Cross multiply
   1,842.89x = 2,759.74 × 1,687.33
4. Step 4: Simplify right side
   1,842.89x = 4,656,591.33
5. Step 5: Solve for x
   x = 4,656,591.33/1,842.89
6. Step 6: Final answer
   x = 2,526.79