Finding the Fourth Proportional to 2,150.42, 2,966.63 and 1,772.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.42 : 2,966.63 = 1,772.55 : x
2. Step 2: Convert to fraction form
   2,150.42/2,966.63 = 1,772.55/x
3. Step 3: Cross multiply
   2,150.42x = 2,966.63 × 1,772.55
4. Step 4: Simplify right side
   2,150.42x = 5,258,491.14
5. Step 5: Solve for x
   x = 5,258,491.14/2,150.42
6. Step 6: Final answer
   x = 2,445.34