Finding the Fourth Proportional to 1,559.30, 2,339.04 and 693.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.30 : 2,339.04 = 693.62 : x
2. Step 2: Convert to fraction form
   1,559.30/2,339.04 = 693.62/x
3. Step 3: Cross multiply
   1,559.30x = 2,339.04 × 693.62
4. Step 4: Simplify right side
   1,559.30x = 1,622,404.92
5. Step 5: Solve for x
   x = 1,622,404.92/1,559.30
6. Step 6: Final answer
   x = 1,040.47