Finding the Fourth Proportional to 2,322.31, 3,204.79 and 1,274.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.31 : 3,204.79 = 1,274.40 : x
2. Step 2: Convert to fraction form
   2,322.31/3,204.79 = 1,274.40/x
3. Step 3: Cross multiply
   2,322.31x = 3,204.79 × 1,274.40
4. Step 4: Simplify right side
   2,322.31x = 4,084,184.38
5. Step 5: Solve for x
   x = 4,084,184.38/2,322.31
6. Step 6: Final answer
   x = 1,758.67