Finding the Fourth Proportional to 1,560.52, 2,153.66 and 897.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,560.52 : 2,153.66 = 897.43 : x
2. Step 2: Convert to fraction form
   1,560.52/2,153.66 = 897.43/x
3. Step 3: Cross multiply
   1,560.52x = 2,153.66 × 897.43
4. Step 4: Simplify right side
   1,560.52x = 1,932,760.83
5. Step 5: Solve for x
   x = 1,932,760.83/1,560.52
6. Step 6: Final answer
   x = 1,238.54