Finding the Fourth Proportional to 2,913.40, 4,365.78 and 2,814.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,913.40 : 4,365.78 = 2,814.04 : x
2. Step 2: Convert to fraction form
   2,913.40/4,365.78 = 2,814.04/x
3. Step 3: Cross multiply
   2,913.40x = 4,365.78 × 2,814.04
4. Step 4: Simplify right side
   2,913.40x = 12,285,479.55
5. Step 5: Solve for x
   x = 12,285,479.55/2,913.40
6. Step 6: Final answer
   x = 4,216.89