Finding the Fourth Proportional to 1,297.83, 1,944.57 and 930.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,297.83 : 1,944.57 = 930.78 : x
2. Step 2: Convert to fraction form
   1,297.83/1,944.57 = 930.78/x
3. Step 3: Cross multiply
   1,297.83x = 1,944.57 × 930.78
4. Step 4: Simplify right side
   1,297.83x = 1,809,966.86
5. Step 5: Solve for x
   x = 1,809,966.86/1,297.83
6. Step 6: Final answer
   x = 1,394.61