Finding the Fourth Proportional to 2,146.89, 3,216.24 and 1,157.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.89 : 3,216.24 = 1,157.25 : x
2. Step 2: Convert to fraction form
   2,146.89/3,216.24 = 1,157.25/x
3. Step 3: Cross multiply
   2,146.89x = 3,216.24 × 1,157.25
4. Step 4: Simplify right side
   2,146.89x = 3,721,993.74
5. Step 5: Solve for x
   x = 3,721,993.74/2,146.89
6. Step 6: Final answer
   x = 1,733.67