Finding the Fourth Proportional to 1,855.83, 2,560.82 and 1,147.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855.83 : 2,560.82 = 1,147.83 : x
2. Step 2: Convert to fraction form
   1,855.83/2,560.82 = 1,147.83/x
3. Step 3: Cross multiply
   1,855.83x = 2,560.82 × 1,147.83
4. Step 4: Simplify right side
   1,855.83x = 2,939,380.28
5. Step 5: Solve for x
   x = 2,939,380.28/1,855.83
6. Step 6: Final answer
   x = 1,583.86