Finding the Fourth Proportional to 2,684.88, 4,030.20 and 2,256.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.88 : 4,030.20 = 2,256.72 : x
2. Step 2: Convert to fraction form
   2,684.88/4,030.20 = 2,256.72/x
3. Step 3: Cross multiply
   2,684.88x = 4,030.20 × 2,256.72
4. Step 4: Simplify right side
   2,684.88x = 9,095,032.94
5. Step 5: Solve for x
   x = 9,095,032.94/2,684.88
6. Step 6: Final answer
   x = 3,387.50