Finding the Fourth Proportional to 2,793.40, 4,209.72 and 2,516.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,793.40 : 4,209.72 = 2,516.10 : x
2. Step 2: Convert to fraction form
   2,793.40/4,209.72 = 2,516.10/x
3. Step 3: Cross multiply
   2,793.40x = 4,209.72 × 2,516.10
4. Step 4: Simplify right side
   2,793.40x = 10,592,076.49
5. Step 5: Solve for x
   x = 10,592,076.49/2,793.40
6. Step 6: Final answer
   x = 3,791.82