Finding the Fourth Proportional to 1,955.42, 2,698.58 and 1,071.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,955.42 : 2,698.58 = 1,071.31 : x
2. Step 2: Convert to fraction form
   1,955.42/2,698.58 = 1,071.31/x
3. Step 3: Cross multiply
   1,955.42x = 2,698.58 × 1,071.31
4. Step 4: Simplify right side
   1,955.42x = 2,891,015.74
5. Step 5: Solve for x
   x = 2,891,015.74/1,955.42
6. Step 6: Final answer
   x = 1,478.46