Finding the Fourth Proportional to 2,521.12, 3,784.56 and 2,377.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.12 : 3,784.56 = 2,377.12 : x
2. Step 2: Convert to fraction form
   2,521.12/3,784.56 = 2,377.12/x
3. Step 3: Cross multiply
   2,521.12x = 3,784.56 × 2,377.12
4. Step 4: Simplify right side
   2,521.12x = 8,996,353.27
5. Step 5: Solve for x
   x = 8,996,353.27/2,521.12
6. Step 6: Final answer
   x = 3,568.40