Finding the Fourth Proportional to 1,074.58, 1,611.86 and 1,022.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.58 : 1,611.86 = 1,022.09 : x
2. Step 2: Convert to fraction form
   1,074.58/1,611.86 = 1,022.09/x
3. Step 3: Cross multiply
   1,074.58x = 1,611.86 × 1,022.09
4. Step 4: Simplify right side
   1,074.58x = 1,647,464.91
5. Step 5: Solve for x
   x = 1,647,464.91/1,074.58
6. Step 6: Final answer
   x = 1,533.13