Finding the Fourth Proportional to 1,622.77, 2,434.82 and 801.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.77 : 2,434.82 = 801.05 : x
2. Step 2: Convert to fraction form
   1,622.77/2,434.82 = 801.05/x
3. Step 3: Cross multiply
   1,622.77x = 2,434.82 × 801.05
4. Step 4: Simplify right side
   1,622.77x = 1,950,396.38
5. Step 5: Solve for x
   x = 1,950,396.38/1,622.77
6. Step 6: Final answer
   x = 1,201.90