Finding the Fourth Proportional to 1,802.23, 2,479.86 and 1,382.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.23 : 2,479.86 = 1,382.42 : x
2. Step 2: Convert to fraction form
   1,802.23/2,479.86 = 1,382.42/x
3. Step 3: Cross multiply
   1,802.23x = 2,479.86 × 1,382.42
4. Step 4: Simplify right side
   1,802.23x = 3,428,188.75
5. Step 5: Solve for x
   x = 3,428,188.75/1,802.23
6. Step 6: Final answer
   x = 1,902.19