Finding the Fourth Proportional to 7,068.30, 10,602.72 and 2,686.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,068.30 : 10,602.72 = 2,686.20 : x
2. Step 2: Convert to fraction form
   7,068.30/10,602.72 = 2,686.20/x
3. Step 3: Cross multiply
   7,068.30x = 10,602.72 × 2,686.20
4. Step 4: Simplify right side
   7,068.30x = 28,481,026.46
5. Step 5: Solve for x
   x = 28,481,026.46/7,068.30
6. Step 6: Final answer
   x = 4,029.40