Finding the Fourth Proportional to 1,394.70, 1,924.71 and 765.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.70 : 1,924.71 = 765.27 : x
2. Step 2: Convert to fraction form
   1,394.70/1,924.71 = 765.27/x
3. Step 3: Cross multiply
   1,394.70x = 1,924.71 × 765.27
4. Step 4: Simplify right side
   1,394.70x = 1,472,922.82
5. Step 5: Solve for x
   x = 1,472,922.82/1,394.70
6. Step 6: Final answer
   x = 1,056.09