Finding the Fourth Proportional to 3,380.67, 5,069.34 and 2,047.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.67 : 5,069.34 = 2,047.80 : x
2. Step 2: Convert to fraction form
   3,380.67/5,069.34 = 2,047.80/x
3. Step 3: Cross multiply
   3,380.67x = 5,069.34 × 2,047.80
4. Step 4: Simplify right side
   3,380.67x = 10,380,994.45
5. Step 5: Solve for x
   x = 10,380,994.45/3,380.67
6. Step 6: Final answer
   x = 3,070.69