Finding the Fourth Proportional to 1,105.58, 1,525.71 and 608.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.58 : 1,525.71 = 608.22 : x
2. Step 2: Convert to fraction form
   1,105.58/1,525.71 = 608.22/x
3. Step 3: Cross multiply
   1,105.58x = 1,525.71 × 608.22
4. Step 4: Simplify right side
   1,105.58x = 927,963.90
5. Step 5: Solve for x
   x = 927,963.90/1,105.58
6. Step 6: Final answer
   x = 839.35