Finding the Fourth Proportional to 1,361.88, 1,879.32 and 802.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,361.88 : 1,879.32 = 802.22 : x
2. Step 2: Convert to fraction form
   1,361.88/1,879.32 = 802.22/x
3. Step 3: Cross multiply
   1,361.88x = 1,879.32 × 802.22
4. Step 4: Simplify right side
   1,361.88x = 1,507,619.38
5. Step 5: Solve for x
   x = 1,507,619.38/1,361.88
6. Step 6: Final answer
   x = 1,107.02