Finding the Fourth Proportional to 2,941.38, 4,411.94 and 861.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,941.38 : 4,411.94 = 861.30 : x
2. Step 2: Convert to fraction form
   2,941.38/4,411.94 = 861.30/x
3. Step 3: Cross multiply
   2,941.38x = 4,411.94 × 861.30
4. Step 4: Simplify right side
   2,941.38x = 3,799,999.62
5. Step 5: Solve for x
   x = 3,799,999.62/2,941.38
6. Step 6: Final answer
   x = 1,291.91