Finding the Fourth Proportional to 3,870.76, 5,342.82 and 2,629.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.76 : 5,342.82 = 2,629.48 : x
2. Step 2: Convert to fraction form
   3,870.76/5,342.82 = 2,629.48/x
3. Step 3: Cross multiply
   3,870.76x = 5,342.82 × 2,629.48
4. Step 4: Simplify right side
   3,870.76x = 14,048,838.33
5. Step 5: Solve for x
   x = 14,048,838.33/3,870.76
6. Step 6: Final answer
   x = 3,629.48