Finding the Fourth Proportional to 1,560.83, 2,153.89 and 897.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,560.83 : 2,153.89 = 897.23 : x
2. Step 2: Convert to fraction form
   1,560.83/2,153.89 = 897.23/x
3. Step 3: Cross multiply
   1,560.83x = 2,153.89 × 897.23
4. Step 4: Simplify right side
   1,560.83x = 1,932,530.24
5. Step 5: Solve for x
   x = 1,932,530.24/1,560.83
6. Step 6: Final answer
   x = 1,238.14