Finding the Fourth Proportional to 1,394.59, 1,923.69 and 897.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.59 : 1,923.69 = 897.05 : x
2. Step 2: Convert to fraction form
   1,394.59/1,923.69 = 897.05/x
3. Step 3: Cross multiply
   1,394.59x = 1,923.69 × 897.05
4. Step 4: Simplify right side
   1,394.59x = 1,725,646.11
5. Step 5: Solve for x
   x = 1,725,646.11/1,394.59
6. Step 6: Final answer
   x = 1,237.39