Finding the Fourth Proportional to 2,359.94, 3,540.43 and 899.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.94 : 3,540.43 = 899.10 : x
2. Step 2: Convert to fraction form
   2,359.94/3,540.43 = 899.10/x
3. Step 3: Cross multiply
   2,359.94x = 3,540.43 × 899.10
4. Step 4: Simplify right side
   2,359.94x = 3,183,200.61
5. Step 5: Solve for x
   x = 3,183,200.61/2,359.94
6. Step 6: Final answer
   x = 1,348.85