Finding the Fourth Proportional to 1,046.72, 1,569.58 and 608.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.72 : 1,569.58 = 608.11 : x
2. Step 2: Convert to fraction form
   1,046.72/1,569.58 = 608.11/x
3. Step 3: Cross multiply
   1,046.72x = 1,569.58 × 608.11
4. Step 4: Simplify right side
   1,046.72x = 954,475.27
5. Step 5: Solve for x
   x = 954,475.27/1,046.72
6. Step 6: Final answer
   x = 911.88