Finding the Fourth Proportional to 1,362.51, 1,879.89 and 802.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.51 : 1,879.89 = 802.98 : x
2. Step 2: Convert to fraction form
   1,362.51/1,879.89 = 802.98/x
3. Step 3: Cross multiply
   1,362.51x = 1,879.89 × 802.98
4. Step 4: Simplify right side
   1,362.51x = 1,509,514.07
5. Step 5: Solve for x
   x = 1,509,514.07/1,362.51
6. Step 6: Final answer
   x = 1,107.89