Finding the Fourth Proportional to 1,469.31, 2,027.63 and 839.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.31 : 2,027.63 = 839.83 : x
2. Step 2: Convert to fraction form
   1,469.31/2,027.63 = 839.83/x
3. Step 3: Cross multiply
   1,469.31x = 2,027.63 × 839.83
4. Step 4: Simplify right side
   1,469.31x = 1,702,864.50
5. Step 5: Solve for x
   x = 1,702,864.50/1,469.31
6. Step 6: Final answer
   x = 1,158.96