Finding the Fourth Proportional to 2,099.81, 2,897.81 and 1,155.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.81 : 2,897.81 = 1,155.56 : x
2. Step 2: Convert to fraction form
   2,099.81/2,897.81 = 1,155.56/x
3. Step 3: Cross multiply
   2,099.81x = 2,897.81 × 1,155.56
4. Step 4: Simplify right side
   2,099.81x = 3,348,577.39
5. Step 5: Solve for x
   x = 3,348,577.39/2,099.81
6. Step 6: Final answer
   x = 1,594.70