Finding the Fourth Proportional to 2,177.35, 3,005.51 and 1,339.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,177.35 : 3,005.51 = 1,339.47 : x
2. Step 2: Convert to fraction form
   2,177.35/3,005.51 = 1,339.47/x
3. Step 3: Cross multiply
   2,177.35x = 3,005.51 × 1,339.47
4. Step 4: Simplify right side
   2,177.35x = 4,025,783.78
5. Step 5: Solve for x
   x = 4,025,783.78/2,177.35
6. Step 6: Final answer
   x = 1,848.94