Finding the Fourth Proportional to 1,432.52, 1,976.81 and 803.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.52 : 1,976.81 = 803.05 : x
2. Step 2: Convert to fraction form
   1,432.52/1,976.81 = 803.05/x
3. Step 3: Cross multiply
   1,432.52x = 1,976.81 × 803.05
4. Step 4: Simplify right side
   1,432.52x = 1,587,468.31
5. Step 5: Solve for x
   x = 1,587,468.31/1,432.52
6. Step 6: Final answer
   x = 1,108.17