Finding the Fourth Proportional to 2,672.00, 3,688.39 and 2,391.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.00 : 3,688.39 = 2,391.74 : x
2. Step 2: Convert to fraction form
   2,672.00/3,688.39 = 2,391.74/x
3. Step 3: Cross multiply
   2,672.00x = 3,688.39 × 2,391.74
4. Step 4: Simplify right side
   2,672.00x = 8,821,659.31
5. Step 5: Solve for x
   x = 8,821,659.31/2,672.00
6. Step 6: Final answer
   x = 3,301.52