Finding the Fourth Proportional to 1,697.12, 2,544.31 and 1,560.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,697.12 : 2,544.31 = 1,560.43 : x
2. Step 2: Convert to fraction form
   1,697.12/2,544.31 = 1,560.43/x
3. Step 3: Cross multiply
   1,697.12x = 2,544.31 × 1,560.43
4. Step 4: Simplify right side
   1,697.12x = 3,970,222.78
5. Step 5: Solve for x
   x = 3,970,222.78/1,697.12
6. Step 6: Final answer
   x = 2,339.39