Finding the Fourth Proportional to 2,312.27, 3,190.63 and 1,304.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,312.27 : 3,190.63 = 1,304.03 : x
2. Step 2: Convert to fraction form
   2,312.27/3,190.63 = 1,304.03/x
3. Step 3: Cross multiply
   2,312.27x = 3,190.63 × 1,304.03
4. Step 4: Simplify right side
   2,312.27x = 4,160,686.85
5. Step 5: Solve for x
   x = 4,160,686.85/2,312.27
6. Step 6: Final answer
   x = 1,799.39