Finding the Fourth Proportional to 2,521.92, 3,787.20 and 2,012.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.92 : 3,787.20 = 2,012.16 : x
2. Step 2: Convert to fraction form
   2,521.92/3,787.20 = 2,012.16/x
3. Step 3: Cross multiply
   2,521.92x = 3,787.20 × 2,012.16
4. Step 4: Simplify right side
   2,521.92x = 7,620,452.35
5. Step 5: Solve for x
   x = 7,620,452.35/2,521.92
6. Step 6: Final answer
   x = 3,021.69