Finding the Fourth Proportional to 1,634.10, 2,255.06 and 888.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,634.10 : 2,255.06 = 888.05 : x
2. Step 2: Convert to fraction form
   1,634.10/2,255.06 = 888.05/x
3. Step 3: Cross multiply
   1,634.10x = 2,255.06 × 888.05
4. Step 4: Simplify right side
   1,634.10x = 2,002,601.59
5. Step 5: Solve for x
   x = 2,002,601.59/1,634.10
6. Step 6: Final answer
   x = 1,225.51