Finding the Fourth Proportional to 1,385.98, 2,075.19 and 897.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.98 : 2,075.19 = 897.82 : x
2. Step 2: Convert to fraction form
   1,385.98/2,075.19 = 897.82/x
3. Step 3: Cross multiply
   1,385.98x = 2,075.19 × 897.82
4. Step 4: Simplify right side
   1,385.98x = 1,863,147.09
5. Step 5: Solve for x
   x = 1,863,147.09/1,385.98
6. Step 6: Final answer
   x = 1,344.28