Finding the Fourth Proportional to 2,677.98, 3,690.89 and 2,259.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,677.98 : 3,690.89 = 2,259.39 : x
2. Step 2: Convert to fraction form
   2,677.98/3,690.89 = 2,259.39/x
3. Step 3: Cross multiply
   2,677.98x = 3,690.89 × 2,259.39
4. Step 4: Simplify right side
   2,677.98x = 8,339,148.66
5. Step 5: Solve for x
   x = 8,339,148.66/2,677.98
6. Step 6: Final answer
   x = 3,113.97