Finding the Fourth Proportional to 5,063.40, 7,580.73 and 2,686.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,063.40 : 7,580.73 = 2,686.05 : x
2. Step 2: Convert to fraction form
   5,063.40/7,580.73 = 2,686.05/x
3. Step 3: Cross multiply
   5,063.40x = 7,580.73 × 2,686.05
4. Step 4: Simplify right side
   5,063.40x = 20,362,219.82
5. Step 5: Solve for x
   x = 20,362,219.82/5,063.40
6. Step 6: Final answer
   x = 4,021.45