Finding the Fourth Proportional to 3,111.49, 4,667.31 and 802.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.49 : 4,667.31 = 802.99 : x
2. Step 2: Convert to fraction form
   3,111.49/4,667.31 = 802.99/x
3. Step 3: Cross multiply
   3,111.49x = 4,667.31 × 802.99
4. Step 4: Simplify right side
   3,111.49x = 3,747,803.26
5. Step 5: Solve for x
   x = 3,747,803.26/3,111.49
6. Step 6: Final answer
   x = 1,204.50