Finding the Fourth Proportional to 5,420.00, 8,131.41 and 2,300.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,420.00 : 8,131.41 = 2,300.15 : x
2. Step 2: Convert to fraction form
   5,420.00/8,131.41 = 2,300.15/x
3. Step 3: Cross multiply
   5,420.00x = 8,131.41 × 2,300.15
4. Step 4: Simplify right side
   5,420.00x = 18,703,422.05
5. Step 5: Solve for x
   x = 18,703,422.05/5,420.00
6. Step 6: Final answer
   x = 3,450.82