Finding the Fourth Proportional to 1,634.48, 2,255.60 and 935.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,634.48 : 2,255.60 = 935.92 : x
2. Step 2: Convert to fraction form
   1,634.48/2,255.60 = 935.92/x
3. Step 3: Cross multiply
   1,634.48x = 2,255.60 × 935.92
4. Step 4: Simplify right side
   1,634.48x = 2,111,061.15
5. Step 5: Solve for x
   x = 2,111,061.15/1,634.48
6. Step 6: Final answer
   x = 1,291.58