Finding the Fourth Proportional to 2,698.18, 4,030.69 and 2,260.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,698.18 : 4,030.69 = 2,260.78 : x
2. Step 2: Convert to fraction form
   2,698.18/4,030.69 = 2,260.78/x
3. Step 3: Cross multiply
   2,698.18x = 4,030.69 × 2,260.78
4. Step 4: Simplify right side
   2,698.18x = 9,112,503.34
5. Step 5: Solve for x
   x = 9,112,503.34/2,698.18
6. Step 6: Final answer
   x = 3,377.28