Finding the Fourth Proportional to 1,101.89, 1,520.63 and 604.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.89 : 1,520.63 = 604.52 : x
2. Step 2: Convert to fraction form
   1,101.89/1,520.63 = 604.52/x
3. Step 3: Cross multiply
   1,101.89x = 1,520.63 × 604.52
4. Step 4: Simplify right side
   1,101.89x = 919,257.30
5. Step 5: Solve for x
   x = 919,257.30/1,101.89
6. Step 6: Final answer
   x = 834.25