Finding the Fourth Proportional to 3,725.56, 5,145.82 and 2,785.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,725.56 : 5,145.82 = 2,785.52 : x
2. Step 2: Convert to fraction form
   3,725.56/5,145.82 = 2,785.52/x
3. Step 3: Cross multiply
   3,725.56x = 5,145.82 × 2,785.52
4. Step 4: Simplify right side
   3,725.56x = 14,333,784.53
5. Step 5: Solve for x
   x = 14,333,784.53/3,725.56
6. Step 6: Final answer
   x = 3,847.42