Finding the Fourth Proportional to 1,859.06, 2,563.40 and 1,185.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.06 : 2,563.40 = 1,185.96 : x
2. Step 2: Convert to fraction form
   1,859.06/2,563.40 = 1,185.96/x
3. Step 3: Cross multiply
   1,859.06x = 2,563.40 × 1,185.96
4. Step 4: Simplify right side
   1,859.06x = 3,040,083.93
5. Step 5: Solve for x
   x = 3,040,083.93/1,859.06
6. Step 6: Final answer
   x = 1,635.28