Finding the Fourth Proportional to 1,778.50, 2,448.52 and 1,545.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.50 : 2,448.52 = 1,545.54 : x
2. Step 2: Convert to fraction form
   1,778.50/2,448.52 = 1,545.54/x
3. Step 3: Cross multiply
   1,778.50x = 2,448.52 × 1,545.54
4. Step 4: Simplify right side
   1,778.50x = 3,784,285.60
5. Step 5: Solve for x
   x = 3,784,285.60/1,778.50
6. Step 6: Final answer
   x = 2,127.80