Finding the Fourth Proportional to 2,545.34, 3,819.27 and 1,878.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.34 : 3,819.27 = 1,878.26 : x
2. Step 2: Convert to fraction form
   2,545.34/3,819.27 = 1,878.26/x
3. Step 3: Cross multiply
   2,545.34x = 3,819.27 × 1,878.26
4. Step 4: Simplify right side
   2,545.34x = 7,173,582.07
5. Step 5: Solve for x
   x = 7,173,582.07/2,545.34
6. Step 6: Final answer
   x = 2,818.32