Finding the Fourth Proportional to 1,634.58, 2,255.72 and 888.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,634.58 : 2,255.72 = 888.54 : x
2. Step 2: Convert to fraction form
   1,634.58/2,255.72 = 888.54/x
3. Step 3: Cross multiply
   1,634.58x = 2,255.72 × 888.54
4. Step 4: Simplify right side
   1,634.58x = 2,004,298.65
5. Step 5: Solve for x
   x = 2,004,298.65/1,634.58
6. Step 6: Final answer
   x = 1,226.18