Finding the Fourth Proportional to 1,339.89, 1,846.83 and 897.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.89 : 1,846.83 = 897.63 : x
2. Step 2: Convert to fraction form
   1,339.89/1,846.83 = 897.63/x
3. Step 3: Cross multiply
   1,339.89x = 1,846.83 × 897.63
4. Step 4: Simplify right side
   1,339.89x = 1,657,770.01
5. Step 5: Solve for x
   x = 1,657,770.01/1,339.89
6. Step 6: Final answer
   x = 1,237.24