Finding the Fourth Proportional to 3,573.55, 4,931.57 and 2,081.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,573.55 : 4,931.57 = 2,081.53 : x
2. Step 2: Convert to fraction form
   3,573.55/4,931.57 = 2,081.53/x
3. Step 3: Cross multiply
   3,573.55x = 4,931.57 × 2,081.53
4. Step 4: Simplify right side
   3,573.55x = 10,265,210.90
5. Step 5: Solve for x
   x = 10,265,210.90/3,573.55
6. Step 6: Final answer
   x = 2,872.55