Finding the Fourth Proportional to 1,076.32, 1,485.42 and 604.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.32 : 1,485.42 = 604.30 : x
2. Step 2: Convert to fraction form
   1,076.32/1,485.42 = 604.30/x
3. Step 3: Cross multiply
   1,076.32x = 1,485.42 × 604.30
4. Step 4: Simplify right side
   1,076.32x = 897,639.31
5. Step 5: Solve for x
   x = 897,639.31/1,076.32
6. Step 6: Final answer
   x = 833.99