Finding the Fourth Proportional to 1,383.09, 1,908.50 and 762.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.09 : 1,908.50 = 762.09 : x
2. Step 2: Convert to fraction form
   1,383.09/1,908.50 = 762.09/x
3. Step 3: Cross multiply
   1,383.09x = 1,908.50 × 762.09
4. Step 4: Simplify right side
   1,383.09x = 1,454,444.95
5. Step 5: Solve for x
   x = 1,454,444.95/1,383.09
6. Step 6: Final answer
   x = 1,051.59