Finding the Fourth Proportional to 2,545.41, 3,818.72 and 790.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.41 : 3,818.72 = 790.33 : x
2. Step 2: Convert to fraction form
   2,545.41/3,818.72 = 790.33/x
3. Step 3: Cross multiply
   2,545.41x = 3,818.72 × 790.33
4. Step 4: Simplify right side
   2,545.41x = 3,018,027.46
5. Step 5: Solve for x
   x = 3,018,027.46/2,545.41
6. Step 6: Final answer
   x = 1,185.67