Finding the Fourth Proportional to 1,948.16, 2,923.72 and 1,429.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.16 : 2,923.72 = 1,429.48 : x
2. Step 2: Convert to fraction form
   1,948.16/2,923.72 = 1,429.48/x
3. Step 3: Cross multiply
   1,948.16x = 2,923.72 × 1,429.48
4. Step 4: Simplify right side
   1,948.16x = 4,179,399.27
5. Step 5: Solve for x
   x = 4,179,399.27/1,948.16
6. Step 6: Final answer
   x = 2,145.31