Finding the Fourth Proportional to 4,188.51, 6,276.83 and 3,084.21

Step by Step Solution

1. Step 1: Write the proportion equation
   4,188.51 : 6,276.83 = 3,084.21 : x
2. Step 2: Convert to fraction form
   4,188.51/6,276.83 = 3,084.21/x
3. Step 3: Cross multiply
   4,188.51x = 6,276.83 × 3,084.21
4. Step 4: Simplify right side
   4,188.51x = 19,359,046.43
5. Step 5: Solve for x
   x = 19,359,046.43/4,188.51
6. Step 6: Final answer
   x = 4,621.94