Finding the Fourth Proportional to 3,116.51, 4,678.84 and 2,192.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.51 : 4,678.84 = 2,192.50 : x
2. Step 2: Convert to fraction form
   3,116.51/4,678.84 = 2,192.50/x
3. Step 3: Cross multiply
   3,116.51x = 4,678.84 × 2,192.50
4. Step 4: Simplify right side
   3,116.51x = 10,258,333.31
5. Step 5: Solve for x
   x = 10,258,333.31/3,116.51
6. Step 6: Final answer
   x = 3,291.61