Finding the Fourth Proportional to 2,076.39, 2,865.35 and 1,180.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.39 : 2,865.35 = 1,180.05 : x
2. Step 2: Convert to fraction form
   2,076.39/2,865.35 = 1,180.05/x
3. Step 3: Cross multiply
   2,076.39x = 2,865.35 × 1,180.05
4. Step 4: Simplify right side
   2,076.39x = 3,381,250.37
5. Step 5: Solve for x
   x = 3,381,250.37/2,076.39
6. Step 6: Final answer
   x = 1,628.43