Finding the Fourth Proportional to 1,908.62, 2,633.83 and 1,069.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.62 : 2,633.83 = 1,069.30 : x
2. Step 2: Convert to fraction form
   1,908.62/2,633.83 = 1,069.30/x
3. Step 3: Cross multiply
   1,908.62x = 2,633.83 × 1,069.30
4. Step 4: Simplify right side
   1,908.62x = 2,816,354.42
5. Step 5: Solve for x
   x = 2,816,354.42/1,908.62
6. Step 6: Final answer
   x = 1,475.60