Finding the Fourth Proportional to 5,406.94, 8,100.69 and 2,801.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,406.94 : 8,100.69 = 2,801.98 : x
2. Step 2: Convert to fraction form
   5,406.94/8,100.69 = 2,801.98/x
3. Step 3: Cross multiply
   5,406.94x = 8,100.69 × 2,801.98
4. Step 4: Simplify right side
   5,406.94x = 22,697,971.37
5. Step 5: Solve for x
   x = 22,697,971.37/5,406.94
6. Step 6: Final answer
   x = 4,197.93