Finding the Fourth Proportional to 2,099.88, 2,895.84 and 1,435.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.88 : 2,895.84 = 1,435.68 : x
2. Step 2: Convert to fraction form
   2,099.88/2,895.84 = 1,435.68/x
3. Step 3: Cross multiply
   2,099.88x = 2,895.84 × 1,435.68
4. Step 4: Simplify right side
   2,099.88x = 4,157,499.57
5. Step 5: Solve for x
   x = 4,157,499.57/2,099.88
6. Step 6: Final answer
   x = 1,979.87