Finding the Fourth Proportional to 1,223.72, 1,832.82 and 930.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223.72 : 1,832.82 = 930.77 : x
2. Step 2: Convert to fraction form
   1,223.72/1,832.82 = 930.77/x
3. Step 3: Cross multiply
   1,223.72x = 1,832.82 × 930.77
4. Step 4: Simplify right side
   1,223.72x = 1,705,933.87
5. Step 5: Solve for x
   x = 1,705,933.87/1,223.72
6. Step 6: Final answer
   x = 1,394.06