Finding the Fourth Proportional to 2,469.60, 3,406.77 and 1,672.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.60 : 3,406.77 = 1,672.96 : x
2. Step 2: Convert to fraction form
   2,469.60/3,406.77 = 1,672.96/x
3. Step 3: Cross multiply
   2,469.60x = 3,406.77 × 1,672.96
4. Step 4: Simplify right side
   2,469.60x = 5,699,389.94
5. Step 5: Solve for x
   x = 5,699,389.94/2,469.60
6. Step 6: Final answer
   x = 2,307.82