Finding the Fourth Proportional to 2,170.16, 3,251.56 and 1,550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,170.16 : 3,251.56 = 1,550.72 : x
2. Step 2: Convert to fraction form
   2,170.16/3,251.56 = 1,550.72/x
3. Step 3: Cross multiply
   2,170.16x = 3,251.56 × 1,550.72
4. Step 4: Simplify right side
   2,170.16x = 5,042,259.12
5. Step 5: Solve for x
   x = 5,042,259.12/2,170.16
6. Step 6: Final answer
   x = 2,323.45