Finding the Fourth Proportional to 2,642.04, 3,954.22 and 2,607.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.04 : 3,954.22 = 2,607.08 : x
2. Step 2: Convert to fraction form
   2,642.04/3,954.22 = 2,607.08/x
3. Step 3: Cross multiply
   2,642.04x = 3,954.22 × 2,607.08
4. Step 4: Simplify right side
   2,642.04x = 10,308,941.59
5. Step 5: Solve for x
   x = 10,308,941.59/2,642.04
6. Step 6: Final answer
   x = 3,901.89