Finding the Fourth Proportional to 2,622.00, 3,933.13 and 843.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.00 : 3,933.13 = 843.20 : x
2. Step 2: Convert to fraction form
   2,622.00/3,933.13 = 843.20/x
3. Step 3: Cross multiply
   2,622.00x = 3,933.13 × 843.20
4. Step 4: Simplify right side
   2,622.00x = 3,316,415.22
5. Step 5: Solve for x
   x = 3,316,415.22/2,622.00
6. Step 6: Final answer
   x = 1,264.84