Finding the Fourth Proportional to 1,908.71, 2,633.67 and 1,069.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.71 : 2,633.67 = 1,069.43 : x
2. Step 2: Convert to fraction form
   1,908.71/2,633.67 = 1,069.43/x
3. Step 3: Cross multiply
   1,908.71x = 2,633.67 × 1,069.43
4. Step 4: Simplify right side
   1,908.71x = 2,816,512.54
5. Step 5: Solve for x
   x = 2,816,512.54/1,908.71
6. Step 6: Final answer
   x = 1,475.61