Finding the Fourth Proportional to 2,185.97, 3,017.40 and 1,856.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.97 : 3,017.40 = 1,856.30 : x
2. Step 2: Convert to fraction form
   2,185.97/3,017.40 = 1,856.30/x
3. Step 3: Cross multiply
   2,185.97x = 3,017.40 × 1,856.30
4. Step 4: Simplify right side
   2,185.97x = 5,601,199.62
5. Step 5: Solve for x
   x = 5,601,199.62/2,185.97
6. Step 6: Final answer
   x = 2,562.34