Finding the Fourth Proportional to 5,111.00, 7,661.04 and 2,643.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.00 : 7,661.04 = 2,643.34 : x
2. Step 2: Convert to fraction form
   5,111.00/7,661.04 = 2,643.34/x
3. Step 3: Cross multiply
   5,111.00x = 7,661.04 × 2,643.34
4. Step 4: Simplify right side
   5,111.00x = 20,250,718.77
5. Step 5: Solve for x
   x = 20,250,718.77/5,111.00
6. Step 6: Final answer
   x = 3,962.18