Finding the Fourth Proportional to 1,432.42, 1,976.84 and 803.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.42 : 1,976.84 = 803.06 : x
2. Step 2: Convert to fraction form
   1,432.42/1,976.84 = 803.06/x
3. Step 3: Cross multiply
   1,432.42x = 1,976.84 × 803.06
4. Step 4: Simplify right side
   1,432.42x = 1,587,522.06
5. Step 5: Solve for x
   x = 1,587,522.06/1,432.42
6. Step 6: Final answer
   x = 1,108.28