Finding the Fourth Proportional to 2,105.74, 2,905.03 and 1,545.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.74 : 2,905.03 = 1,545.24 : x
2. Step 2: Convert to fraction form
   2,105.74/2,905.03 = 1,545.24/x
3. Step 3: Cross multiply
   2,105.74x = 2,905.03 × 1,545.24
4. Step 4: Simplify right side
   2,105.74x = 4,488,981.38
5. Step 5: Solve for x
   x = 4,488,981.38/2,105.74
6. Step 6: Final answer
   x = 2,131.78