Finding the Fourth Proportional to 1,180.71, 1,629.45 and 656.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.71 : 1,629.45 = 656.82 : x
2. Step 2: Convert to fraction form
   1,180.71/1,629.45 = 656.82/x
3. Step 3: Cross multiply
   1,180.71x = 1,629.45 × 656.82
4. Step 4: Simplify right side
   1,180.71x = 1,070,255.35
5. Step 5: Solve for x
   x = 1,070,255.35/1,180.71
6. Step 6: Final answer
   x = 906.45