Finding the Fourth Proportional to 2,146.39, 3,218.54 and 976.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.39 : 3,218.54 = 976.34 : x
2. Step 2: Convert to fraction form
   2,146.39/3,218.54 = 976.34/x
3. Step 3: Cross multiply
   2,146.39x = 3,218.54 × 976.34
4. Step 4: Simplify right side
   2,146.39x = 3,142,392.51
5. Step 5: Solve for x
   x = 3,142,392.51/2,146.39
6. Step 6: Final answer
   x = 1,464.04