Finding the Fourth Proportional to 1,401.09, 1,933.39 and 803.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.09 : 1,933.39 = 803.58 : x
2. Step 2: Convert to fraction form
   1,401.09/1,933.39 = 803.58/x
3. Step 3: Cross multiply
   1,401.09x = 1,933.39 × 803.58
4. Step 4: Simplify right side
   1,401.09x = 1,553,630.71
5. Step 5: Solve for x
   x = 1,553,630.71/1,401.09
6. Step 6: Final answer
   x = 1,108.87