Finding the Fourth Proportional to 1,303.08, 1,956.78 and 1,071.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,303.08 : 1,956.78 = 1,071.96 : x
2. Step 2: Convert to fraction form
   1,303.08/1,956.78 = 1,071.96/x
3. Step 3: Cross multiply
   1,303.08x = 1,956.78 × 1,071.96
4. Step 4: Simplify right side
   1,303.08x = 2,097,589.89
5. Step 5: Solve for x
   x = 2,097,589.89/1,303.08
6. Step 6: Final answer
   x = 1,609.72