Finding the Fourth Proportional to 3,113.01, 4,672.47 and 2,288.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,113.01 : 4,672.47 = 2,288.78 : x
2. Step 2: Convert to fraction form
   3,113.01/4,672.47 = 2,288.78/x
3. Step 3: Cross multiply
   3,113.01x = 4,672.47 × 2,288.78
4. Step 4: Simplify right side
   3,113.01x = 10,694,255.89
5. Step 5: Solve for x
   x = 10,694,255.89/3,113.01
6. Step 6: Final answer
   x = 3,435.34