Finding the Fourth Proportional to 2,172.42, 3,256.53 and 1,432.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172.42 : 3,256.53 = 1,432.59 : x
2. Step 2: Convert to fraction form
   2,172.42/3,256.53 = 1,432.59/x
3. Step 3: Cross multiply
   2,172.42x = 3,256.53 × 1,432.59
4. Step 4: Simplify right side
   2,172.42x = 4,665,258.76
5. Step 5: Solve for x
   x = 4,665,258.76/2,172.42
6. Step 6: Final answer
   x = 2,147.49