Finding the Fourth Proportional to 1,114.82, 1,671.89 and 384.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.82 : 1,671.89 = 384.23 : x
2. Step 2: Convert to fraction form
   1,114.82/1,671.89 = 384.23/x
3. Step 3: Cross multiply
   1,114.82x = 1,671.89 × 384.23
4. Step 4: Simplify right side
   1,114.82x = 642,381.94
5. Step 5: Solve for x
   x = 642,381.94/1,114.82
6. Step 6: Final answer
   x = 576.22