Finding the Fourth Proportional to 3,491.69, 4,817.95 and 2,076.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,491.69 : 4,817.95 = 2,076.21 : x
2. Step 2: Convert to fraction form
   3,491.69/4,817.95 = 2,076.21/x
3. Step 3: Cross multiply
   3,491.69x = 4,817.95 × 2,076.21
4. Step 4: Simplify right side
   3,491.69x = 10,003,070.78
5. Step 5: Solve for x
   x = 10,003,070.78/3,491.69
6. Step 6: Final answer
   x = 2,864.83