Finding the Fourth Proportional to 1,802.81, 2,487.89 and 1,104.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.81 : 2,487.89 = 1,104.17 : x
2. Step 2: Convert to fraction form
   1,802.81/2,487.89 = 1,104.17/x
3. Step 3: Cross multiply
   1,802.81x = 2,487.89 × 1,104.17
4. Step 4: Simplify right side
   1,802.81x = 2,747,047.98
5. Step 5: Solve for x
   x = 2,747,047.98/1,802.81
6. Step 6: Final answer
   x = 1,523.76