Finding the Fourth Proportional to 2,941.46, 4,412.86 and 861.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,941.46 : 4,412.86 = 861.48 : x
2. Step 2: Convert to fraction form
   2,941.46/4,412.86 = 861.48/x
3. Step 3: Cross multiply
   2,941.46x = 4,412.86 × 861.48
4. Step 4: Simplify right side
   2,941.46x = 3,801,590.63
5. Step 5: Solve for x
   x = 3,801,590.63/2,941.46
6. Step 6: Final answer
   x = 1,292.42