Finding the Fourth Proportional to 1,956.39, 2,699.82 and 1,072.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,956.39 : 2,699.82 = 1,072.17 : x
2. Step 2: Convert to fraction form
   1,956.39/2,699.82 = 1,072.17/x
3. Step 3: Cross multiply
   1,956.39x = 2,699.82 × 1,072.17
4. Step 4: Simplify right side
   1,956.39x = 2,894,666.01
5. Step 5: Solve for x
   x = 2,894,666.01/1,956.39
6. Step 6: Final answer
   x = 1,479.60