Finding the Fourth Proportional to 4,654.47, 6,428.65 and 3,079.83

Step by Step Solution

1. Step 1: Write the proportion equation
   4,654.47 : 6,428.65 = 3,079.83 : x
2. Step 2: Convert to fraction form
   4,654.47/6,428.65 = 3,079.83/x
3. Step 3: Cross multiply
   4,654.47x = 6,428.65 × 3,079.83
4. Step 4: Simplify right side
   4,654.47x = 19,799,156.83
5. Step 5: Solve for x
   x = 19,799,156.83/4,654.47
6. Step 6: Final answer
   x = 4,253.79