Finding the Fourth Proportional to 1,225.29, 1,685.88 and 1,067.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.29 : 1,685.88 = 1,067.34 : x
2. Step 2: Convert to fraction form
   1,225.29/1,685.88 = 1,067.34/x
3. Step 3: Cross multiply
   1,225.29x = 1,685.88 × 1,067.34
4. Step 4: Simplify right side
   1,225.29x = 1,799,407.16
5. Step 5: Solve for x
   x = 1,799,407.16/1,225.29
6. Step 6: Final answer
   x = 1,468.56