Finding the Fourth Proportional to 1,101.92, 1,521.98 and 802.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.92 : 1,521.98 = 802.69 : x
2. Step 2: Convert to fraction form
   1,101.92/1,521.98 = 802.69/x
3. Step 3: Cross multiply
   1,101.92x = 1,521.98 × 802.69
4. Step 4: Simplify right side
   1,101.92x = 1,221,673.32
5. Step 5: Solve for x
   x = 1,221,673.32/1,101.92
6. Step 6: Final answer
   x = 1,108.68