Finding the Fourth Proportional to 1,227.83, 1,692.61 and 932.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.83 : 1,692.61 = 932.58 : x
2. Step 2: Convert to fraction form
   1,227.83/1,692.61 = 932.58/x
3. Step 3: Cross multiply
   1,227.83x = 1,692.61 × 932.58
4. Step 4: Simplify right side
   1,227.83x = 1,578,491.90
5. Step 5: Solve for x
   x = 1,578,491.90/1,227.83
6. Step 6: Final answer
   x = 1,285.60