Finding the Fourth Proportional to 1,632.78, 2,253.27 and 934.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.78 : 2,253.27 = 934.20 : x
2. Step 2: Convert to fraction form
   1,632.78/2,253.27 = 934.20/x
3. Step 3: Cross multiply
   1,632.78x = 2,253.27 × 934.20
4. Step 4: Simplify right side
   1,632.78x = 2,105,004.83
5. Step 5: Solve for x
   x = 2,105,004.83/1,632.78
6. Step 6: Final answer
   x = 1,289.22