Finding the Fourth Proportional to 1,443.84, 2,160.72 and 1,180.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.84 : 2,160.72 = 1,180.80 : x
2. Step 2: Convert to fraction form
   1,443.84/2,160.72 = 1,180.80/x
3. Step 3: Cross multiply
   1,443.84x = 2,160.72 × 1,180.80
4. Step 4: Simplify right side
   1,443.84x = 2,551,378.18
5. Step 5: Solve for x
   x = 2,551,378.18/1,443.84
6. Step 6: Final answer
   x = 1,767.08