Finding the Fourth Proportional to 2,839.35, 4,258.08 and 1,377.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,839.35 : 4,258.08 = 1,377.57 : x
2. Step 2: Convert to fraction form
   2,839.35/4,258.08 = 1,377.57/x
3. Step 3: Cross multiply
   2,839.35x = 4,258.08 × 1,377.57
4. Step 4: Simplify right side
   2,839.35x = 5,865,803.27
5. Step 5: Solve for x
   x = 5,865,803.27/2,839.35
6. Step 6: Final answer
   x = 2,065.90