Finding the Fourth Proportional to 2,099.86, 2,897.84 and 1,155.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.86 : 2,897.84 = 1,155.67 : x
2. Step 2: Convert to fraction form
   2,099.86/2,897.84 = 1,155.67/x
3. Step 3: Cross multiply
   2,099.86x = 2,897.84 × 1,155.67
4. Step 4: Simplify right side
   2,099.86x = 3,348,942.40
5. Step 5: Solve for x
   x = 3,348,942.40/2,099.86
6. Step 6: Final answer
   x = 1,594.84