Finding the Fourth Proportional to 2,885.98, 3,985.56 and 2,486.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.98 : 3,985.56 = 2,486.82 : x
2. Step 2: Convert to fraction form
   2,885.98/3,985.56 = 2,486.82/x
3. Step 3: Cross multiply
   2,885.98x = 3,985.56 × 2,486.82
4. Step 4: Simplify right side
   2,885.98x = 9,911,370.32
5. Step 5: Solve for x
   x = 9,911,370.32/2,885.98
6. Step 6: Final answer
   x = 3,434.32