Finding the Fourth Proportional to 2,941.19, 4,411.12 and 860.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,941.19 : 4,411.12 = 860.69 : x
2. Step 2: Convert to fraction form
   2,941.19/4,411.12 = 860.69/x
3. Step 3: Cross multiply
   2,941.19x = 4,411.12 × 860.69
4. Step 4: Simplify right side
   2,941.19x = 3,796,606.87
5. Step 5: Solve for x
   x = 3,796,606.87/2,941.19
6. Step 6: Final answer
   x = 1,290.84