Finding the Fourth Proportional to 1,559.22, 2,332.89 and 1,386.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.22 : 2,332.89 = 1,386.42 : x
2. Step 2: Convert to fraction form
   1,559.22/2,332.89 = 1,386.42/x
3. Step 3: Cross multiply
   1,559.22x = 2,332.89 × 1,386.42
4. Step 4: Simplify right side
   1,559.22x = 3,234,365.35
5. Step 5: Solve for x
   x = 3,234,365.35/1,559.22
6. Step 6: Final answer
   x = 2,074.35