Finding the Fourth Proportional to 3,111.07, 4,301.40 and 2,973.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.07 : 4,301.40 = 2,973.37 : x
2. Step 2: Convert to fraction form
   3,111.07/4,301.40 = 2,973.37/x
3. Step 3: Cross multiply
   3,111.07x = 4,301.40 × 2,973.37
4. Step 4: Simplify right side
   3,111.07x = 12,789,632.21
5. Step 5: Solve for x
   x = 12,789,632.21/3,111.07
6. Step 6: Final answer
   x = 4,111.01