Finding the Fourth Proportional to 1,104.79, 1,524.57 and 607.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.79 : 1,524.57 = 607.45 : x
2. Step 2: Convert to fraction form
   1,104.79/1,524.57 = 607.45/x
3. Step 3: Cross multiply
   1,104.79x = 1,524.57 × 607.45
4. Step 4: Simplify right side
   1,104.79x = 926,100.05
5. Step 5: Solve for x
   x = 926,100.05/1,104.79
6. Step 6: Final answer
   x = 838.26