Finding the Fourth Proportional to 2,866.79, 4,300.86 and 892.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.79 : 4,300.86 = 892.32 : x
2. Step 2: Convert to fraction form
   2,866.79/4,300.86 = 892.32/x
3. Step 3: Cross multiply
   2,866.79x = 4,300.86 × 892.32
4. Step 4: Simplify right side
   2,866.79x = 3,837,743.40
5. Step 5: Solve for x
   x = 3,837,743.40/2,866.79
6. Step 6: Final answer
   x = 1,338.69