Finding the Fourth Proportional to 1,429.76, 2,131.12 and 1,382.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.76 : 2,131.12 = 1,382.38 : x
2. Step 2: Convert to fraction form
   1,429.76/2,131.12 = 1,382.38/x
3. Step 3: Cross multiply
   1,429.76x = 2,131.12 × 1,382.38
4. Step 4: Simplify right side
   1,429.76x = 2,946,007.01
5. Step 5: Solve for x
   x = 2,946,007.01/1,429.76
6. Step 6: Final answer
   x = 2,060.49