Finding the Fourth Proportional to 1,074.75, 1,603.88 and 1,068.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.75 : 1,603.88 = 1,068.59 : x
2. Step 2: Convert to fraction form
   1,074.75/1,603.88 = 1,068.59/x
3. Step 3: Cross multiply
   1,074.75x = 1,603.88 × 1,068.59
4. Step 4: Simplify right side
   1,074.75x = 1,713,892.80
5. Step 5: Solve for x
   x = 1,713,892.80/1,074.75
6. Step 6: Final answer
   x = 1,594.69