Finding the Fourth Proportional to 1,417.82, 1,956.82 and 828.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.82 : 1,956.82 = 828.24 : x
2. Step 2: Convert to fraction form
   1,417.82/1,956.82 = 828.24/x
3. Step 3: Cross multiply
   1,417.82x = 1,956.82 × 828.24
4. Step 4: Simplify right side
   1,417.82x = 1,620,712.66
5. Step 5: Solve for x
   x = 1,620,712.66/1,417.82
6. Step 6: Final answer
   x = 1,143.10