Finding the Fourth Proportional to 1,559.06, 2,339.31 and 693.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.06 : 2,339.31 = 693.62 : x
2. Step 2: Convert to fraction form
   1,559.06/2,339.31 = 693.62/x
3. Step 3: Cross multiply
   1,559.06x = 2,339.31 × 693.62
4. Step 4: Simplify right side
   1,559.06x = 1,622,592.20
5. Step 5: Solve for x
   x = 1,622,592.20/1,559.06
6. Step 6: Final answer
   x = 1,040.75