Finding the Fourth Proportional to 6,800.78, 10,202.72 and 1,870.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,800.78 : 10,202.72 = 1,870.82 : x
2. Step 2: Convert to fraction form
   6,800.78/10,202.72 = 1,870.82/x
3. Step 3: Cross multiply
   6,800.78x = 10,202.72 × 1,870.82
4. Step 4: Simplify right side
   6,800.78x = 19,087,452.63
5. Step 5: Solve for x
   x = 19,087,452.63/6,800.78
6. Step 6: Final answer
   x = 2,806.66