Finding the Fourth Proportional to 2,516.20, 3,473.73 and 1,521.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.20 : 3,473.73 = 1,521.73 : x
2. Step 2: Convert to fraction form
   2,516.20/3,473.73 = 1,521.73/x
3. Step 3: Cross multiply
   2,516.20x = 3,473.73 × 1,521.73
4. Step 4: Simplify right side
   2,516.20x = 5,286,079.15
5. Step 5: Solve for x
   x = 5,286,079.15/2,516.20
6. Step 6: Final answer
   x = 2,100.82