Finding the Fourth Proportional to 1,076.60, 1,485.71 and 604.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.60 : 1,485.71 = 604.48 : x
2. Step 2: Convert to fraction form
   1,076.60/1,485.71 = 604.48/x
3. Step 3: Cross multiply
   1,076.60x = 1,485.71 × 604.48
4. Step 4: Simplify right side
   1,076.60x = 898,081.43
5. Step 5: Solve for x
   x = 898,081.43/1,076.60
6. Step 6: Final answer
   x = 834.18