Finding the Fourth Proportional to 1,104.78, 1,524.69 and 607.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.78 : 1,524.69 = 607.52 : x
2. Step 2: Convert to fraction form
   1,104.78/1,524.69 = 607.52/x
3. Step 3: Cross multiply
   1,104.78x = 1,524.69 × 607.52
4. Step 4: Simplify right side
   1,104.78x = 926,272.05
5. Step 5: Solve for x
   x = 926,272.05/1,104.78
6. Step 6: Final answer
   x = 838.43