Finding the Fourth Proportional to 1,003.92, 1,386.14 and 650.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.92 : 1,386.14 = 650.05 : x
2. Step 2: Convert to fraction form
   1,003.92/1,386.14 = 650.05/x
3. Step 3: Cross multiply
   1,003.92x = 1,386.14 × 650.05
4. Step 4: Simplify right side
   1,003.92x = 901,060.31
5. Step 5: Solve for x
   x = 901,060.31/1,003.92
6. Step 6: Final answer
   x = 897.54