Finding the Fourth Proportional to 2,518.61, 3,472.34 and 2,068.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.61 : 3,472.34 = 2,068.79 : x
2. Step 2: Convert to fraction form
   2,518.61/3,472.34 = 2,068.79/x
3. Step 3: Cross multiply
   2,518.61x = 3,472.34 × 2,068.79
4. Step 4: Simplify right side
   2,518.61x = 7,183,514.56
5. Step 5: Solve for x
   x = 7,183,514.56/2,518.61
6. Step 6: Final answer
   x = 2,852.18