Finding the Fourth Proportional to 3,573.86, 4,931.94 and 2,082.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,573.86 : 4,931.94 = 2,082.80 : x
2. Step 2: Convert to fraction form
   3,573.86/4,931.94 = 2,082.80/x
3. Step 3: Cross multiply
   3,573.86x = 4,931.94 × 2,082.80
4. Step 4: Simplify right side
   3,573.86x = 10,272,209.56
5. Step 5: Solve for x
   x = 10,272,209.56/3,573.86
6. Step 6: Final answer
   x = 2,874.27