Finding the Fourth Proportional to 2,099.17, 2,897.04 and 1,155.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.17 : 2,897.04 = 1,155.15 : x
2. Step 2: Convert to fraction form
   2,099.17/2,897.04 = 1,155.15/x
3. Step 3: Cross multiply
   2,099.17x = 2,897.04 × 1,155.15
4. Step 4: Simplify right side
   2,099.17x = 3,346,505.60
5. Step 5: Solve for x
   x = 3,346,505.60/2,099.17
6. Step 6: Final answer
   x = 1,594.20