Finding the Fourth Proportional to 1,432.89, 1,977.41 and 803.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.89 : 1,977.41 = 803.39 : x
2. Step 2: Convert to fraction form
   1,432.89/1,977.41 = 803.39/x
3. Step 3: Cross multiply
   1,432.89x = 1,977.41 × 803.39
4. Step 4: Simplify right side
   1,432.89x = 1,588,623.54
5. Step 5: Solve for x
   x = 1,588,623.54/1,432.89
6. Step 6: Final answer
   x = 1,108.68