Finding the Fourth Proportional to 2,784.59, 4,178.91 and 2,243.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.59 : 4,178.91 = 2,243.31 : x
2. Step 2: Convert to fraction form
   2,784.59/4,178.91 = 2,243.31/x
3. Step 3: Cross multiply
   2,784.59x = 4,178.91 × 2,243.31
4. Step 4: Simplify right side
   2,784.59x = 9,374,590.59
5. Step 5: Solve for x
   x = 9,374,590.59/2,784.59
6. Step 6: Final answer
   x = 3,366.60