Finding the Fourth Proportional to 2,545.59, 3,817.57 and 790.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.59 : 3,817.57 = 790.52 : x
2. Step 2: Convert to fraction form
   2,545.59/3,817.57 = 790.52/x
3. Step 3: Cross multiply
   2,545.59x = 3,817.57 × 790.52
4. Step 4: Simplify right side
   2,545.59x = 3,017,865.44
5. Step 5: Solve for x
   x = 3,017,865.44/2,545.59
6. Step 6: Final answer
   x = 1,185.53