Finding the Fourth Proportional to 2,673.56, 3,990.76 and 2,357.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.56 : 3,990.76 = 2,357.93 : x
2. Step 2: Convert to fraction form
   2,673.56/3,990.76 = 2,357.93/x
3. Step 3: Cross multiply
   2,673.56x = 3,990.76 × 2,357.93
4. Step 4: Simplify right side
   2,673.56x = 9,409,942.64
5. Step 5: Solve for x
   x = 9,409,942.64/2,673.56
6. Step 6: Final answer
   x = 3,519.63