Finding the Fourth Proportional to 2,242.86, 3,369.78 and 2,118.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,242.86 : 3,369.78 = 2,118.53 : x
2. Step 2: Convert to fraction form
   2,242.86/3,369.78 = 2,118.53/x
3. Step 3: Cross multiply
   2,242.86x = 3,369.78 × 2,118.53
4. Step 4: Simplify right side
   2,242.86x = 7,138,963.17
5. Step 5: Solve for x
   x = 7,138,963.17/2,242.86
6. Step 6: Final answer
   x = 3,182.97