Finding the Fourth Proportional to 1,596.96, 2,203.59 and 888.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,596.96 : 2,203.59 = 888.78 : x
2. Step 2: Convert to fraction form
   1,596.96/2,203.59 = 888.78/x
3. Step 3: Cross multiply
   1,596.96x = 2,203.59 × 888.78
4. Step 4: Simplify right side
   1,596.96x = 1,958,506.72
5. Step 5: Solve for x
   x = 1,958,506.72/1,596.96
6. Step 6: Final answer
   x = 1,226.40