Finding the Fourth Proportional to 1,667.98, 2,498.73 and 802.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.98 : 2,498.73 = 802.90 : x
2. Step 2: Convert to fraction form
   1,667.98/2,498.73 = 802.90/x
3. Step 3: Cross multiply
   1,667.98x = 2,498.73 × 802.90
4. Step 4: Simplify right side
   1,667.98x = 2,006,230.32
5. Step 5: Solve for x
   x = 2,006,230.32/1,667.98
6. Step 6: Final answer
   x = 1,202.79