Finding the Fourth Proportional to 1,383.89, 2,075.96 and 835.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.89 : 2,075.96 = 835.25 : x
2. Step 2: Convert to fraction form
   1,383.89/2,075.96 = 835.25/x
3. Step 3: Cross multiply
   1,383.89x = 2,075.96 × 835.25
4. Step 4: Simplify right side
   1,383.89x = 1,733,937.30
5. Step 5: Solve for x
   x = 1,733,937.30/1,383.89
6. Step 6: Final answer
   x = 1,252.95