Finding the Fourth Proportional to 1,114.69, 1,672.37 and 384.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.69 : 1,672.37 = 384.34 : x
2. Step 2: Convert to fraction form
   1,114.69/1,672.37 = 384.34/x
3. Step 3: Cross multiply
   1,114.69x = 1,672.37 × 384.34
4. Step 4: Simplify right side
   1,114.69x = 642,756.76
5. Step 5: Solve for x
   x = 642,756.76/1,114.69
6. Step 6: Final answer
   x = 576.62