Finding the Fourth Proportional to 1,180.63, 1,629.30 and 656.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.63 : 1,629.30 = 656.69 : x
2. Step 2: Convert to fraction form
   1,180.63/1,629.30 = 656.69/x
3. Step 3: Cross multiply
   1,180.63x = 1,629.30 × 656.69
4. Step 4: Simplify right side
   1,180.63x = 1,069,945.02
5. Step 5: Solve for x
   x = 1,069,945.02/1,180.63
6. Step 6: Final answer
   x = 906.25