Finding the Fourth Proportional to 2,516.10, 3,471.80 and 1,521.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.10 : 3,471.80 = 1,521.33 : x
2. Step 2: Convert to fraction form
   2,516.10/3,471.80 = 1,521.33/x
3. Step 3: Cross multiply
   2,516.10x = 3,471.80 × 1,521.33
4. Step 4: Simplify right side
   2,516.10x = 5,281,745.89
5. Step 5: Solve for x
   x = 5,281,745.89/2,516.10
6. Step 6: Final answer
   x = 2,099.18