Finding the Fourth Proportional to 3,870.78, 5,826.84 and 3,334.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.78 : 5,826.84 = 3,334.92 : x
2. Step 2: Convert to fraction form
   3,870.78/5,826.84 = 3,334.92/x
3. Step 3: Cross multiply
   3,870.78x = 5,826.84 × 3,334.92
4. Step 4: Simplify right side
   3,870.78x = 19,432,045.25
5. Step 5: Solve for x
   x = 19,432,045.25/3,870.78
6. Step 6: Final answer
   x = 5,020.19