Finding the Fourth Proportional to 2,260.86, 3,120.39 and 1,377.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,260.86 : 3,120.39 = 1,377.42 : x
2. Step 2: Convert to fraction form
   2,260.86/3,120.39 = 1,377.42/x
3. Step 3: Cross multiply
   2,260.86x = 3,120.39 × 1,377.42
4. Step 4: Simplify right side
   2,260.86x = 4,298,087.59
5. Step 5: Solve for x
   x = 4,298,087.59/2,260.86
6. Step 6: Final answer
   x = 1,901.09