Finding the Fourth Proportional to 2,671.50, 3,685.05 and 1,725.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.50 : 3,685.05 = 1,725.78 : x
2. Step 2: Convert to fraction form
   2,671.50/3,685.05 = 1,725.78/x
3. Step 3: Cross multiply
   2,671.50x = 3,685.05 × 1,725.78
4. Step 4: Simplify right side
   2,671.50x = 6,359,585.59
5. Step 5: Solve for x
   x = 6,359,585.59/2,671.50
6. Step 6: Final answer
   x = 2,380.53