Finding the Fourth Proportional to 2,103.22, 2,902.41 and 1,158.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.22 : 2,902.41 = 1,158.99 : x
2. Step 2: Convert to fraction form
   2,103.22/2,902.41 = 1,158.99/x
3. Step 3: Cross multiply
   2,103.22x = 2,902.41 × 1,158.99
4. Step 4: Simplify right side
   2,103.22x = 3,363,864.17
5. Step 5: Solve for x
   x = 3,363,864.17/2,103.22
6. Step 6: Final answer
   x = 1,599.39