Finding the Fourth Proportional to 1,859.82, 2,566.56 and 1,020.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.82 : 2,566.56 = 1,020.60 : x
2. Step 2: Convert to fraction form
   1,859.82/2,566.56 = 1,020.60/x
3. Step 3: Cross multiply
   1,859.82x = 2,566.56 × 1,020.60
4. Step 4: Simplify right side
   1,859.82x = 2,619,431.14
5. Step 5: Solve for x
   x = 2,619,431.14/1,859.82
6. Step 6: Final answer
   x = 1,408.43