Finding the Fourth Proportional to 1,432.03, 1,976.36 and 802.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.03 : 1,976.36 = 802.72 : x
2. Step 2: Convert to fraction form
   1,432.03/1,976.36 = 802.72/x
3. Step 3: Cross multiply
   1,432.03x = 1,976.36 × 802.72
4. Step 4: Simplify right side
   1,432.03x = 1,586,459.69
5. Step 5: Solve for x
   x = 1,586,459.69/1,432.03
6. Step 6: Final answer
   x = 1,107.84