Finding the Fourth Proportional to 1,076.67, 1,485.83 and 604.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.67 : 1,485.83 = 604.55 : x
2. Step 2: Convert to fraction form
   1,076.67/1,485.83 = 604.55/x
3. Step 3: Cross multiply
   1,076.67x = 1,485.83 × 604.55
4. Step 4: Simplify right side
   1,076.67x = 898,263.75
5. Step 5: Solve for x
   x = 898,263.75/1,076.67
6. Step 6: Final answer
   x = 834.30