Finding the Fourth Proportional to 1,395.40, 1,925.77 and 897.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.40 : 1,925.77 = 897.73 : x
2. Step 2: Convert to fraction form
   1,395.40/1,925.77 = 897.73/x
3. Step 3: Cross multiply
   1,395.40x = 1,925.77 × 897.73
4. Step 4: Simplify right side
   1,395.40x = 1,728,821.50
5. Step 5: Solve for x
   x = 1,728,821.50/1,395.40
6. Step 6: Final answer
   x = 1,238.94