Finding the Fourth Proportional to 2,393.40, 3,302.37 and 1,399.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,393.40 : 3,302.37 = 1,399.00 : x
2. Step 2: Convert to fraction form
   2,393.40/3,302.37 = 1,399.00/x
3. Step 3: Cross multiply
   2,393.40x = 3,302.37 × 1,399.00
4. Step 4: Simplify right side
   2,393.40x = 4,620,004.28
5. Step 5: Solve for x
   x = 4,620,004.28/2,393.40
6. Step 6: Final answer
   x = 1,930.31