Finding the Fourth Proportional to 1,105.31, 1,525.34 and 608.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.31 : 1,525.34 = 608.01 : x
2. Step 2: Convert to fraction form
   1,105.31/1,525.34 = 608.01/x
3. Step 3: Cross multiply
   1,105.31x = 1,525.34 × 608.01
4. Step 4: Simplify right side
   1,105.31x = 927,421.97
5. Step 5: Solve for x
   x = 927,421.97/1,105.31
6. Step 6: Final answer
   x = 839.06