Finding the Fourth Proportional to 2,105.05, 2,903.50 and 1,358.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.05 : 2,903.50 = 1,358.77 : x
2. Step 2: Convert to fraction form
   2,105.05/2,903.50 = 1,358.77/x
3. Step 3: Cross multiply
   2,105.05x = 2,903.50 × 1,358.77
4. Step 4: Simplify right side
   2,105.05x = 3,945,188.70
5. Step 5: Solve for x
   x = 3,945,188.70/2,105.05
6. Step 6: Final answer
   x = 1,874.15