Finding the Fourth Proportional to 1,338.54, 1,846.85 and 896.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.54 : 1,846.85 = 896.69 : x
2. Step 2: Convert to fraction form
   1,338.54/1,846.85 = 896.69/x
3. Step 3: Cross multiply
   1,338.54x = 1,846.85 × 896.69
4. Step 4: Simplify right side
   1,338.54x = 1,656,038.21
5. Step 5: Solve for x
   x = 1,656,038.21/1,338.54
6. Step 6: Final answer
   x = 1,237.20