Finding the Fourth Proportional to 2,941.61, 4,411.43 and 861.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,941.61 : 4,411.43 = 861.73 : x
2. Step 2: Convert to fraction form
   2,941.61/4,411.43 = 861.73/x
3. Step 3: Cross multiply
   2,941.61x = 4,411.43 × 861.73
4. Step 4: Simplify right side
   2,941.61x = 3,801,461.57
5. Step 5: Solve for x
   x = 3,801,461.57/2,941.61
6. Step 6: Final answer
   x = 1,292.31