Finding the Fourth Proportional to 2,359.86, 3,540.21 and 1,043.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.86 : 3,540.21 = 1,043.61 : x
2. Step 2: Convert to fraction form
   2,359.86/3,540.21 = 1,043.61/x
3. Step 3: Cross multiply
   2,359.86x = 3,540.21 × 1,043.61
4. Step 4: Simplify right side
   2,359.86x = 3,694,598.56
5. Step 5: Solve for x
   x = 3,694,598.56/2,359.86
6. Step 6: Final answer
   x = 1,565.60