Finding the Fourth Proportional to 1,322.89, 1,983.33 and 802.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.89 : 1,983.33 = 802.77 : x
2. Step 2: Convert to fraction form
   1,322.89/1,983.33 = 802.77/x
3. Step 3: Cross multiply
   1,322.89x = 1,983.33 × 802.77
4. Step 4: Simplify right side
   1,322.89x = 1,592,157.82
5. Step 5: Solve for x
   x = 1,592,157.82/1,322.89
6. Step 6: Final answer
   x = 1,203.55