Finding the Fourth Proportional to 1,955.96, 2,699.31 and 1,071.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,955.96 : 2,699.31 = 1,071.74 : x
2. Step 2: Convert to fraction form
   1,955.96/2,699.31 = 1,071.74/x
3. Step 3: Cross multiply
   1,955.96x = 2,699.31 × 1,071.74
4. Step 4: Simplify right side
   1,955.96x = 2,892,969.27
5. Step 5: Solve for x
   x = 2,892,969.27/1,955.96
6. Step 6: Final answer
   x = 1,479.05