Finding the Fourth Proportional to 1,382.79, 1,906.23 and 1,050.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.79 : 1,906.23 = 1,050.64 : x
2. Step 2: Convert to fraction form
   1,382.79/1,906.23 = 1,050.64/x
3. Step 3: Cross multiply
   1,382.79x = 1,906.23 × 1,050.64
4. Step 4: Simplify right side
   1,382.79x = 2,002,759.35
5. Step 5: Solve for x
   x = 2,002,759.35/1,382.79
6. Step 6: Final answer
   x = 1,448.35