Finding the Fourth Proportional to 1,101.98, 1,520.71 and 604.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.98 : 1,520.71 = 604.61 : x
2. Step 2: Convert to fraction form
   1,101.98/1,520.71 = 604.61/x
3. Step 3: Cross multiply
   1,101.98x = 1,520.71 × 604.61
4. Step 4: Simplify right side
   1,101.98x = 919,436.47
5. Step 5: Solve for x
   x = 919,436.47/1,101.98
6. Step 6: Final answer
   x = 834.35