Finding the Fourth Proportional to 2,840.39, 4,260.82 and 892.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,840.39 : 4,260.82 = 892.59 : x
2. Step 2: Convert to fraction form
   2,840.39/4,260.82 = 892.59/x
3. Step 3: Cross multiply
   2,840.39x = 4,260.82 × 892.59
4. Step 4: Simplify right side
   2,840.39x = 3,803,165.32
5. Step 5: Solve for x
   x = 3,803,165.32/2,840.39
6. Step 6: Final answer
   x = 1,338.96