Finding the Fourth Proportional to 2,345.09, 3,236.21 and 1,401.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.09 : 3,236.21 = 1,401.31 : x
2. Step 2: Convert to fraction form
   2,345.09/3,236.21 = 1,401.31/x
3. Step 3: Cross multiply
   2,345.09x = 3,236.21 × 1,401.31
4. Step 4: Simplify right side
   2,345.09x = 4,534,933.44
5. Step 5: Solve for x
   x = 4,534,933.44/2,345.09
6. Step 6: Final answer
   x = 1,933.80