Finding the Fourth Proportional to 1,417.29, 1,956.04 and 857.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.29 : 1,956.04 = 857.95 : x
2. Step 2: Convert to fraction form
   1,417.29/1,956.04 = 857.95/x
3. Step 3: Cross multiply
   1,417.29x = 1,956.04 × 857.95
4. Step 4: Simplify right side
   1,417.29x = 1,678,190.03
5. Step 5: Solve for x
   x = 1,678,190.03/1,417.29
6. Step 6: Final answer
   x = 1,184.08