Finding the Fourth Proportional to 2,099.99, 2,894.41 and 1,435.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.99 : 2,894.41 = 1,435.69 : x
2. Step 2: Convert to fraction form
   2,099.99/2,894.41 = 1,435.69/x
3. Step 3: Cross multiply
   2,099.99x = 2,894.41 × 1,435.69
4. Step 4: Simplify right side
   2,099.99x = 4,155,464.67
5. Step 5: Solve for x
   x = 4,155,464.67/2,099.99
6. Step 6: Final answer
   x = 1,978.81