Finding the Fourth Proportional to 3,111.77, 4,291.01 and 2,403.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.77 : 4,291.01 = 2,403.73 : x
2. Step 2: Convert to fraction form
   3,111.77/4,291.01 = 2,403.73/x
3. Step 3: Cross multiply
   3,111.77x = 4,291.01 × 2,403.73
4. Step 4: Simplify right side
   3,111.77x = 10,314,424.75
5. Step 5: Solve for x
   x = 10,314,424.75/3,111.77
6. Step 6: Final answer
   x = 3,314.65