Finding the Fourth Proportional to 1,632.83, 2,253.30 and 886.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.83 : 2,253.30 = 886.78 : x
2. Step 2: Convert to fraction form
   1,632.83/2,253.30 = 886.78/x
3. Step 3: Cross multiply
   1,632.83x = 2,253.30 × 886.78
4. Step 4: Simplify right side
   1,632.83x = 1,998,181.37
5. Step 5: Solve for x
   x = 1,998,181.37/1,632.83
6. Step 6: Final answer
   x = 1,223.75