Finding the Fourth Proportional to 2,480.98, 3,719.84 and 1,385.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,480.98 : 3,719.84 = 1,385.46 : x
2. Step 2: Convert to fraction form
   2,480.98/3,719.84 = 1,385.46/x
3. Step 3: Cross multiply
   2,480.98x = 3,719.84 × 1,385.46
4. Step 4: Simplify right side
   2,480.98x = 5,153,689.53
5. Step 5: Solve for x
   x = 5,153,689.53/2,480.98
6. Step 6: Final answer
   x = 2,077.28