Finding the Fourth Proportional to 1,339.48, 1,848.71 and 897.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.48 : 1,848.71 = 897.44 : x
2. Step 2: Convert to fraction form
   1,339.48/1,848.71 = 897.44/x
3. Step 3: Cross multiply
   1,339.48x = 1,848.71 × 897.44
4. Step 4: Simplify right side
   1,339.48x = 1,659,106.30
5. Step 5: Solve for x
   x = 1,659,106.30/1,339.48
6. Step 6: Final answer
   x = 1,238.62