Finding the Fourth Proportional to 2,345.61, 3,236.45 and 1,401.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.61 : 3,236.45 = 1,401.15 : x
2. Step 2: Convert to fraction form
   2,345.61/3,236.45 = 1,401.15/x
3. Step 3: Cross multiply
   2,345.61x = 3,236.45 × 1,401.15
4. Step 4: Simplify right side
   2,345.61x = 4,534,744.91
5. Step 5: Solve for x
   x = 4,534,744.91/2,345.61
6. Step 6: Final answer
   x = 1,933.29