Finding the Fourth Proportional to 1,878.10, 2,591.76 and 1,179.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.10 : 2,591.76 = 1,179.34 : x
2. Step 2: Convert to fraction form
   1,878.10/2,591.76 = 1,179.34/x
3. Step 3: Cross multiply
   1,878.10x = 2,591.76 × 1,179.34
4. Step 4: Simplify right side
   1,878.10x = 3,056,566.24
5. Step 5: Solve for x
   x = 3,056,566.24/1,878.10
6. Step 6: Final answer
   x = 1,627.48