Finding the Fourth Proportional to 1,485.27, 2,052.23 and 1,432.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.27 : 2,052.23 = 1,432.71 : x
2. Step 2: Convert to fraction form
   1,485.27/2,052.23 = 1,432.71/x
3. Step 3: Cross multiply
   1,485.27x = 2,052.23 × 1,432.71
4. Step 4: Simplify right side
   1,485.27x = 2,940,243.28
5. Step 5: Solve for x
   x = 2,940,243.28/1,485.27
6. Step 6: Final answer
   x = 1,979.60