Finding the Fourth Proportional to 1,877.94, 2,590.38 and 1,179.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.94 : 2,590.38 = 1,179.72 : x
2. Step 2: Convert to fraction form
   1,877.94/2,590.38 = 1,179.72/x
3. Step 3: Cross multiply
   1,877.94x = 2,590.38 × 1,179.72
4. Step 4: Simplify right side
   1,877.94x = 3,055,923.09
5. Step 5: Solve for x
   x = 3,055,923.09/1,877.94
6. Step 6: Final answer
   x = 1,627.27