Finding the Fourth Proportional to 2,800.98, 4,196.61 and 1,811.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,800.98 : 4,196.61 = 1,811.16 : x
2. Step 2: Convert to fraction form
   2,800.98/4,196.61 = 1,811.16/x
3. Step 3: Cross multiply
   2,800.98x = 4,196.61 × 1,811.16
4. Step 4: Simplify right side
   2,800.98x = 7,600,732.17
5. Step 5: Solve for x
   x = 7,600,732.17/2,800.98
6. Step 6: Final answer
   x = 2,713.60