Finding the Fourth Proportional to 1,878.56, 2,591.76 and 1,180.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.56 : 2,591.76 = 1,180.32 : x
2. Step 2: Convert to fraction form
   1,878.56/2,591.76 = 1,180.32/x
3. Step 3: Cross multiply
   1,878.56x = 2,591.76 × 1,180.32
4. Step 4: Simplify right side
   1,878.56x = 3,059,106.16
5. Step 5: Solve for x
   x = 3,059,106.16/1,878.56
6. Step 6: Final answer
   x = 1,628.43