Finding the Fourth Proportional to 1,436.16, 2,151.92 and 1,429.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.16 : 2,151.92 = 1,429.44 : x
2. Step 2: Convert to fraction form
   1,436.16/2,151.92 = 1,429.44/x
3. Step 3: Cross multiply
   1,436.16x = 2,151.92 × 1,429.44
4. Step 4: Simplify right side
   1,436.16x = 3,076,040.52
5. Step 5: Solve for x
   x = 3,076,040.52/1,436.16
6. Step 6: Final answer
   x = 2,141.85