Finding the Fourth Proportional to 2,171.16, 3,253.06 and 1,551.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.16 : 3,253.06 = 1,551.72 : x
2. Step 2: Convert to fraction form
   2,171.16/3,253.06 = 1,551.72/x
3. Step 3: Cross multiply
   2,171.16x = 3,253.06 × 1,551.72
4. Step 4: Simplify right side
   2,171.16x = 5,047,838.26
5. Step 5: Solve for x
   x = 5,047,838.26/2,171.16
6. Step 6: Final answer
   x = 2,324.95