Finding the Fourth Proportional to 3,728.74, 5,145.71 and 2,050.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728.74 : 5,145.71 = 2,050.31 : x
2. Step 2: Convert to fraction form
   3,728.74/5,145.71 = 2,050.31/x
3. Step 3: Cross multiply
   3,728.74x = 5,145.71 × 2,050.31
4. Step 4: Simplify right side
   3,728.74x = 10,550,300.67
5. Step 5: Solve for x
   x = 10,550,300.67/3,728.74
6. Step 6: Final answer
   x = 2,829.45