Finding the Fourth Proportional to 1,047.66, 1,445.91 and 654.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.66 : 1,445.91 = 654.81 : x
2. Step 2: Convert to fraction form
   1,047.66/1,445.91 = 654.81/x
3. Step 3: Cross multiply
   1,047.66x = 1,445.91 × 654.81
4. Step 4: Simplify right side
   1,047.66x = 946,796.33
5. Step 5: Solve for x
   x = 946,796.33/1,047.66
6. Step 6: Final answer
   x = 903.72