Finding the Fourth Proportional to 1,559.58, 2,337.69 and 828.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.58 : 2,337.69 = 828.42 : x
2. Step 2: Convert to fraction form
   1,559.58/2,337.69 = 828.42/x
3. Step 3: Cross multiply
   1,559.58x = 2,337.69 × 828.42
4. Step 4: Simplify right side
   1,559.58x = 1,936,589.15
5. Step 5: Solve for x
   x = 1,936,589.15/1,559.58
6. Step 6: Final answer
   x = 1,241.74