Finding the Fourth Proportional to 1,105.45, 1,525.49 and 608.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.45 : 1,525.49 = 608.06 : x
2. Step 2: Convert to fraction form
   1,105.45/1,525.49 = 608.06/x
3. Step 3: Cross multiply
   1,105.45x = 1,525.49 × 608.06
4. Step 4: Simplify right side
   1,105.45x = 927,592.50
5. Step 5: Solve for x
   x = 927,592.50/1,105.45
6. Step 6: Final answer
   x = 839.11