Finding the Fourth Proportional to 2,077.52, 3,107.76 and 1,377.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.52 : 3,107.76 = 1,377.68 : x
2. Step 2: Convert to fraction form
   2,077.52/3,107.76 = 1,377.68/x
3. Step 3: Cross multiply
   2,077.52x = 3,107.76 × 1,377.68
4. Step 4: Simplify right side
   2,077.52x = 4,281,498.80
5. Step 5: Solve for x
   x = 4,281,498.80/2,077.52
6. Step 6: Final answer
   x = 2,060.87