Finding the Fourth Proportional to 1,004.63, 1,386.38 and 655.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.63 : 1,386.38 = 655.31 : x
2. Step 2: Convert to fraction form
   1,004.63/1,386.38 = 655.31/x
3. Step 3: Cross multiply
   1,004.63x = 1,386.38 × 655.31
4. Step 4: Simplify right side
   1,004.63x = 908,513.78
5. Step 5: Solve for x
   x = 908,513.78/1,004.63
6. Step 6: Final answer
   x = 904.33