Finding the Fourth Proportional to 1,105.29, 1,525.30 and 607.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.29 : 1,525.30 = 607.94 : x
2. Step 2: Convert to fraction form
   1,105.29/1,525.30 = 607.94/x
3. Step 3: Cross multiply
   1,105.29x = 1,525.30 × 607.94
4. Step 4: Simplify right side
   1,105.29x = 927,287.46
5. Step 5: Solve for x
   x = 927,287.46/1,105.29
6. Step 6: Final answer
   x = 838.95