Finding the Fourth Proportional to 2,379.47, 3,282.32 and 1,679.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.47 : 3,282.32 = 1,679.63 : x
2. Step 2: Convert to fraction form
   2,379.47/3,282.32 = 1,679.63/x
3. Step 3: Cross multiply
   2,379.47x = 3,282.32 × 1,679.63
4. Step 4: Simplify right side
   2,379.47x = 5,513,070.93
5. Step 5: Solve for x
   x = 5,513,070.93/2,379.47
6. Step 6: Final answer
   x = 2,316.94