Finding the Fourth Proportional to 2,071.44, 3,106.25 and 1,097.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.44 : 3,106.25 = 1,097.31 : x
2. Step 2: Convert to fraction form
   2,071.44/3,106.25 = 1,097.31/x
3. Step 3: Cross multiply
   2,071.44x = 3,106.25 × 1,097.31
4. Step 4: Simplify right side
   2,071.44x = 3,408,529.46
5. Step 5: Solve for x
   x = 3,408,529.46/2,071.44
6. Step 6: Final answer
   x = 1,645.49