Finding the Fourth Proportional to 2,150.16, 3,225.32 and 763.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.16 : 3,225.32 = 763.64 : x
2. Step 2: Convert to fraction form
   2,150.16/3,225.32 = 763.64/x
3. Step 3: Cross multiply
   2,150.16x = 3,225.32 × 763.64
4. Step 4: Simplify right side
   2,150.16x = 2,462,963.42
5. Step 5: Solve for x
   x = 2,462,963.42/2,150.16
6. Step 6: Final answer
   x = 1,145.48