Finding the Fourth Proportional to 1,180.72, 1,629.61 and 883.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.72 : 1,629.61 = 883.46 : x
2. Step 2: Convert to fraction form
   1,180.72/1,629.61 = 883.46/x
3. Step 3: Cross multiply
   1,180.72x = 1,629.61 × 883.46
4. Step 4: Simplify right side
   1,180.72x = 1,439,695.25
5. Step 5: Solve for x
   x = 1,439,695.25/1,180.72
6. Step 6: Final answer
   x = 1,219.34